Nurse!

St. Louis Cardinals pitcher Carlos Martinez is ferociously disputing a lawsuit -- in which the 24-year-old is accused of giving a woman non-life threatening STDs ... after swearing he was clean.

The woman behind the suit, filed in district court in Miami, claims she began a romantic relationship with Martinez in 2012 -- and the two had an on-and-off relationship for years.

According to the suit, the two reconnected last year -- and began having sex again on Dec. 16th. Two days later, the woman claims she began to feel ill and later tested positive for multiple STDs.

The woman claims she had grilled Martinez about his sexual health before they hooked up and he "swore to God that he was not infected with any sexually transmitted disease."

Soon after the woman informed Martinez about her condition, he allegedly bolted for the Dominican Republic and never called her back.

Now, she's suing him for battery, negligent transmission of sexually transmitted diseases, fraud and more ... and she's demanding more than $1.5 million in damages.

We spoke with Martinez's attorney Ruben Scolavino who tells us Carlos adamantly denies the allegations.

The U.S. Olympian who was paralyzed in a freak training accident says he's GETTING BETTER ... and in an emotional new video, says he's lucky to be alive.

As we previously reported, 2-time Olympic high jumper Jamie Nieto fell on his head while training Olympic hopefuls this past weekend ... and suffered major damage to his back.

Nieto has now made a brand new video from his hospital bed -- thanking everyone for supporting him ... including Olympic star Lolo Jones who launched a fundraising campaign to pay for his medical bills.

In the emotional video, Nieto says doctors believe he has a "high chance of getting better" -- which is amazing considering he almost died following the accident.

As for the fundraising, we're told Lolo has raised more than $40k -- which is extremely significant considering Nieto had canceled his health insurance before the accident due to financial struggles.

4:28 PM PT -- A rep for the Mass. State Police tells TMZ Sports ... Flair's injury was NOT to his hand, but rather his head.

Cops did not say how Flair sustained the injury.

Witnesses at the airport tell us Flair was bleeding from his forehead ... with one person saying, "It was dripping down from his head to his neck. A significant amount of blood."

We reached back out to Flair's rep -- so far, no word back.

Ric Flair was treated for a cut on his hand at Logan International Airport in Boston Wednesday morning ... but witnesses say it was the culmination of a very bizarre morning involving the WWE legend.

Here's what we know ... Flair hit up Lucky's Lounge in the airport before his flight -- and multiple witnesses say Flair was acting like a drunk person.

One witness says Flair was loud and obnoxious. Another witness says he was "having a tough time" and "shambling about."

But we spoke with Airport Police Sgt. Donlon who tells us Flair was NOT intoxicated.

Sgt. Donlon says airport officials got a call for a "man with a cut on his hand" -- and police and medical personnel responded. Flair was treated -- deemed not drunk -- and was allowed to get on his flight.

We spoke with Flair's rep who told us Ric is fine -- and made his flight.

As for how Flair injured his hand -- we're working on it.

9:43 AM PT -- Ric's agent, Melinda Morris Zanoni, tells us she has spoken with Flair and issued the following statement:

"Ric has been working every day around the clock, including internationally, for a month straight and has injuries on his hand that were being looked into this morning."

Expectant "Little Women: LA" star Briana Renee is in the danger zone after going into labor only 6 months into her pregnancy ... TMZ has learned.

Briana's husband, Matt Ericson, rushed her to a hospital Monday night in Murrieta, CA after she experienced severe pains that had her worried about the baby. It turns out those pains were contractions, and now doctors are closely monitoring Briana.

We're told there's serious concern because premature births are typically far more risky for little people. Doctors have Briana on round-the-clock bed rest, and meds to slow the contractions because it's just too soon.

The show is currently shooting, but we're told production is on hold ... since cameras are banned at the hospital.

A former U.S. Olympic star was partially paralyzed in a training incident over the weekend ... and now his friend Lolo Jones is spearheading a fundraising campaign to help pay for his medical bills.

TMZ Sports has learned ... Jamie Nieto -- a high jumper who finished 4th at the 2004 Games and 6th in 2012 -- was injured during a backflip training exercise while working with Olympic hopefuls at Azusa Pacific University in California on April 23rd.

Nieto's manager, Paul Doyle, tells us the 39-year-old landed on his head -- and the injury was so bad, a helicopter was called to the scene to transport him to USC Medical Center.

"We were very close to losing him at one stage," Doyle says ... "but thankfully, the MRI came back with no broken neck and the spinal cord remained intact."

"He’s slowly getting better. He’s starting to get feeling in his hands and legs ... doctors are optimistic."

But Nieto has another huge problem -- Doyle says Nieto had financial issues before the incident and had cancelled his health insurance to save money. Bottom line ... he's in trouble.

Enter Lolo Jones ... who trained with Nieto for years and became close with the track star. Now she wants to help raise funds to cover some of the medical costs.

In fact, Jones launched a fundraising page and made a video saying Nieto "has always been a light for me even when I've had some of my toughest moments."

"I just beg of you to please help donate to him now so that we can help him get back on his feet and he can soar to great heights once again."

So far, Jones has raised about $9,000 and counting.

Susan Boyle was removed from Heathrow Airport by ambulance after losing it on airline staffers ... and TMZ has learned she's now recovering at home.

London cops were called to the British Airways lounge on Monday afternoon for reports of a distressed woman. We're told the officers took Boyle away against her will ... out of concern for her health, and she was hospitalized for evaluation.

Witnesses say she was throwing a massive tantrum when cops arrived on the scene.

Susan's reps tell us she was never on a psychiatric hold. The singer's revealed she has Asperger's Syndrome ... which her rep says caused Monday's emotional outburst.

We're told Susan was eventually released, and caught a flight back home to Scotland.

Disney World is NOT "The Most Magical Place On Earth" for one man who says he was severely injured ... not on a ride, but while watching the dreaded Christmas Parade.

Michael Amabile claims he was at the Magic Kingdom in Orlando last December waiting for "Mickey's Very Merry Christmas Parade," when he tripped over a sidewalk.

According to the suit ... Michael says the sidewalk could not be seen due to all the lights being turned off, and Disney cast members never warned him about the elevated step.

Amabile doesn't specify his injuries in the suit, but he wants the Mouse to pony up big money for his medical bills.

A few turkey legs wouldn't hurt either, we're guessing.

Prince hit up a local pharmacy hours before he died -- the 4th time he visited this week -- indicating his health was far worse than the simple flu.

TMZ obtained this photo of Prince leaving a Walgreens near his home in Minnesota Wednesday night at around 7 PM.

Our sources tell us Prince had frequented the Walgreens for years -- but last night, people at the store were concerned because he looked much more frail and nervous than usual.

As we previously reported, Prince's team told the media he was suffering from the flu. It seemed odd, because his private jet had to make an emergency landing in Moline, Illinois last Friday, just 48 minutes from his home.

Prince was hospitalized ... but was discharged after only a few hours. Our sources in Moline told us at the time they felt Prince left the hospital way too soon because he was "not doing well" and needed further medical care.

On Saturday, the day after he was released from the hospital, Prince took the stage at a dance party near his home and curiously said, "Wait a few days before you waste any prayers."

Someone has died at Prince's estate in Minnesota.

Authorities responded to a medical emergency at his Paisley Park studio on Thursday morning. The Carver County Sheriff's department in Chanhassen, Minnesota tells TMZ there has been a fatality, and they're notifying next of kin.

According to the Sheriff's dept ... deputies responded to Paisley Park at 9:43 AM.

As TMZ first reported ... Prince was briefly hospitalized in Moline, IL. His private jet made an emergency landing there after 1 AM Friday.

It doesn't take a chemist to know ... you can't substitute liquid nitrogen for vodka ... so claims a man who says he got a most unwelcome specialty cocktail at the famed Beverly Hilton Hotel.

Jeremy Cox claims he was at a fancy shindig in August at the hotel where Whitney Houston died, when the bartender offered him and his wife a "specialty cocktail." He claims the bartender said, "You need to drink them right away."

Jeremy says he gulped it down, and immediately gasped, turned pale and collapsed. His wife thought he was dead.

Turns out, according to Jeremy, instead of getting a drink cooled by liquid nitrogen, he was actually served a glass of liquid nitrogen.

As for his injuries, Jeremy says the drink burned his mouth, esophagus and stomach. And when he hit the ground he suffered head trauma.

Kathy Bates is throwing her support behind a group of women on a mission that could affect millions of people like Kathy ... who are suffering with lymphedema.

We got Kathy at LAX on Tuesday, and she opened up about her painful battle. Lymphedema is a swelling of tissues caused by removal of/or damage to lymph nodes. Kathy developed it after undergoing a double mastectomy in 2012.

Kathy told us patients are dealing with two huge issues -- one being the lack of health insurance coverage, but as she explained it ... the cavalry is on its way to Washington, D.C.

Sorry Axl Rose ... AC/DC's Brian Johnson is "no quitter" and wants everyone to know his hearing issues will NOT force him to retire from the band.

On the heels of the news Axl's taking over lead singer duties for AC/DC's remaining European tour dates ... Johnson says, doctors advised him to stop performing shows in arenas or stadiums "where the sound levels are beyond my current tolerance, without the risk of substantial hearing loss and possibly total deafness."

However, he says he's still good to go in studio, and plans to do that when AC/DC records again. Brian will also continue getting treatments, and "I am hoping that in time my hearing will improve and allow me to return to live concert performances."

In other words ...

Even accomplished weed smokers like Waka Flocka Flame can overdo it.

The rapper was in Seattle Sunday and his evening was interrupted by some EMTs who gave him a lift in their ambulance. Waka blames it on "#nonGMO edibles and 20 or more blunts."

The rep says Waka didn't end up in the hospital, which is weird because that's usually the dropping off point for an ambo.

FYI ... recreational weed is legal in the state of Washington, though we doubt that would have stopped Waka.

Ace Frehley can no longer rock and roll all night -- doctors orders.

TMZ has learned Frehley is back home resting after being rushed to the hospital Friday night for exhaustion and dehydration. The ex KISS guitarist was released Sunday night with one warning: slow down.

Docs told the 64-year-old he's in great shape for his age, but needs to stop running around like he's still 18. He was advised to arrange a less exhausting tour schedule.

We're told Frehley already clocked in a dozen shows this month -- and was shooting a music video in L.A. at the same time ... flying back and forth to play his East Coast dates. Fortunately, the Saturday gig he had to cancel was his last tour date.

Joe Manganiello was sidelined over the last few days because of appendicitis and a surgery that was extremely serious ... TMZ has learned.

Sources connected with the actor tell us, Joe went into the hospital late last week to have his appendix removed, but when doctors went in they were alarmed. We do not conclusively know the nature of the problem, but one source says his appendix burst.

Joe, who cancelled an event Sunday, was still in the hospital as of last night.

Joe's rep has said he has a chronic condition and suggested that's why he missed his Sunday appearance. We know he ripped a bicep during shooting of 'Magic Mike' and had surgery as a result. We also know the bicep is an ongoing problem, but we're told appendicitis is what kept him away last week.

Kanye West's new artist is making a serious splash in the biz -- by throwing up his guts in the middle of a show, and acting like it never happened.

Desiigner, who 'Ye signed to his label earlier this year, was performing his hit "Panda" Saturday night in NYC. Apparently he caught the same flu bug Prince caught recently ... because while D was jumping around onstage he lost it.

Props to Desiigner though ... he kept the show going.

Even more props to the janitors.