Celebrity Health

Nyquist -- the winner of the Kentucky Derby -- has been pulled from the Belmont Stakes ... after complications with his health, TMZ Sports has learned.

We spoke with Nyquist's assistant trainer, Jack Sisterson, who tells us ... Nyquist has an elevated white blood cell count, which can sometimes indicate an infection.

Nyquist was already battling a fever -- but Sisterson hoped Nyquist would overcome it in time for the Belmont Stakes next month.

Now, with this new complication, Sisterson says it's better to play it safe -- and not push Nyquist too hard.

"We just want to do right by Nyquist right now. We want to make sure he'll be back to 100% in the next few days."

As for his future -- "He's definitely going to race again this summer."

Johnny Manziel's drinking and drug use is worse than ever -- but the QB refuses to seek help ... and now people close to him are convinced he's going to die unless something changes soon.

Here's what we know ... Manziel has become even more reckless with his drug problem recently -- even blowing lines in front of people he barely knows.

"He's in a horrible downward spiral," one source very close to the QB tells TMZ Sports.

There have been multiple serious attempts to help Johnny -- with one group of close friends recently sitting him down and "confronting" him about his situation. But, as one source put it, "He flipped out and would not hear it."

His friends are desperately trying to get through to him but haven't been successful -- and they're hoping this story will serve as a wake-up call.

Maybe Vegas can reach him -- because, as multiple sources have told us, he's become persona non grata at several of the top spots after his violent outburst this past weekend at JEWEL nightclub at the Aria.

"He's too much of a risk," one high-powered nightclub source tells us ... "He's a good guy, but he's a f***ing mess."

Manziel is still living under the delusion that he'll make it back to the NFL -- and recently talked about his comeback plans with TMZ Sports. But no one has seen him training and when we asked him about it last month, the idea of working out seemed like a joke.

Instead, he continues to party like a maniac -- L.A., Vegas, Miami, Coachella, Dallas -- and, as one source put it, "If he continues this way for much longer he will die.”

His own father expressed grave concern about Johnny back in February -- saying if he doesn't get help, "he won't live to see his 24th birthday."

We reached out to Manziel's rep -- but she told us there was nothing she could say on the matter.

For every epidemic, you'll find someone trying to make a quick buck, and now some hucksters are capitalizing on the Zika scare by flooding the market with "lifesaving" swag.

At least 6 people filed legal docs to lock down merchandising rights for Zika prevention kits. The products are all about mosquito repellents, including:

- Zika Shield: mosquito nets; particularly nets adapted to be mounted onto an umbrella

- Zika Screen: insect screens for use in building construction

- Zika Trap: insect traps

- Bye Bye Zika: mosquito repellent coils

- Anti Zika: cedar wood for use as an insect repellent; insect repellent tags for pets; mosquito repellent incense

- Zika Band: insect repellent wristband

Joe Jackson is in an L.A. hospital after his health took a turn for the worse during a routine checkup.

Sources close to the family tell TMZ Joe was scheduled for some tests with his personal doctor Friday. However, Joe became weak during the tests and struck a high fever. We're told that's when his doc admitted Joe to the hospital ... where he's been ever since.

We're told 87-year-old Joe still has a high fever, and docs can't pinpoint exactly what's wrong.

Our photog caught up with Jermaine over the weekend, and at the time he felt things were slowly improving.

"Days of Our Lives" actor Eric Winter is recovering in a hospital with debilitating and mysterious numbness.

Eric has been dogged by neck and back issues for years, and he's already gone under the knife twice, but without success.

The pain was too much and last Tuesday he went back in ... it was especially alarming because he experienced numbness running down his right arm.

Lucky for Eric ... doctors did not perform a third neck surgery. They tried a minor procedure they hope will do the trick.

It's been a rough couple of weeks for soap stars. A "General Hospital" actor was in a horrendous car accident but got off pretty easy.

Chance the Rapper is suffering some sort of illness, and it's so bad he's laid up in a hospital.

Chance was scheduled to perform Monday at Night for NYC -- a Robin Hood charity event -- but canceled in the 11th hour. We've learned the organization fired off an email to all attendees less than 3 hours before doors opened ... to announce Chance was hospitalized, and Mark Ronson and Joey Bada$$ would take his place.

It's unclear what landed Chance in the hospital. His rep hasn't gotten back to us.

He's scheduled to release his third mixtape later this week, and just debuted a new single on the 'Tonight Show.'

Wrestling legend Bobby "The Brain" Heenan has been hospitalized after falling at his home in Florida ... and his wife says he'll be there for a couple of days.

The 71-year-old was admitted to the hospital Wednesday morning due to injuries from the fall, according to Pro Wrestling Sheet ... but doctors are concerned about his blood pressure.

Bobby's wife, Cynthia, says he'll remain at the hospital for at least 72 hours.

Eminem's ex-wife, Kim Mathers, was trying to kill herself when she rolled her car into a ditch last October in an alleged drunk driving accident.

Kim called into the Detroit radio show "Mojo in the Morning" on channel 95.5 to come clean on the car accident. The case had been sealed, leading people to think she was getting preferential treatment from the court. Kim says the docs were sealed only because they had medical information related to her suicide attempt.

She admits she specifically found a road where no one else would get hurt, ingested pills and alcohol before she "hit the gas and aimed for a pole." Her Cadillac Escalade flipped but Kim ultimately survived the wreck.

Kim says she's currently getting help. Listen to the clip ... she also talks about how Eminem's helped her through the ordeal.

There's a twist in the brewing war among Prince's brothers and sisters ... it involves a missing persons report and allegations one of the singer's siblings is trying to wrest power from the group.

Our sources say last Friday ... someone filed a missing persons report/welfare check involving Alfred Jackson, the elder half brother of Prince. According to the report, Alfred is disabled and has been living in a V.A. facility near Minneapolis.

The person who filed the police report claims Alfred just left the facility and no one could find him.

Here's what's interesting. TMZ broke the story ... Alfred was in a meeting last Thursday with Prince's other brothers and sisters. We publicized the meeting on the website. It's odd someone filed a missing persons/welfare check report the next day.

Our sources say Alfred believes the person who filed the report is a sibling who is trying to get him declared mentally incompetent so they can get power of attorney and a second vote in what is turning into a battle over Prince's estate.

We're told Alfred and his lawyer, Frank Wheaton, went to the Minneapolis Police Dept. over the weekend to prove he was fully competent. Alfred presented proof he's got his meds, is taking them and is of sound mind. We're told the missing persons case is now closed.

Kirk Gibson is an absolute badass ... telling TMZ Sports his Parkinson's disease is a huge pain in the ass -- but he REFUSES to give in.

The MLB legend was at LAX when he started talking about "this guy I carry around ... his name's Parky."

Our photog didn't quite get the connection -- but it's clear Gibson's talking about his medical condition, which he was diagnosed with last year.

You gotta watch the clip ... Gibson keeps it about as real as it gets.

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.

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.

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.

NFL star Josh Gordon is trying a new type of hot box ... but instead of weed smoke, we're talkin' infrared saunas with virtual yoga instructors ... all in the hopes of detoxing his body.

Gordon -- on a mission to get back in the NFL after reportedly failing multiple weed tests -- recently hit up Planet Beach West Los Angeles to get something called -- and we're not making this up -- the "Hot Box Detox."

We're told Gordon did 30 minutes of yoga in a 120-degree sauna led by an on-screen virtual instructor. He followed that up with red light therapy in a standup booth, which is said to help blood circulation ... and a session in a hydro-derma fusion bed to help cleanse his pores.

Lamar Odom still has some strong supporters when it comes to his NBA comeback -- including former teammate Jamal Crawford who tells TMZ Sports he thinks the guy still has real talent.

The Clippers star -- and NBA 6th Man of the Year -- told us he's confident the basketball world would embrace Odom ... despite the issues he's had off the court.

"He's so talented," Crawford told us.

As we previously reported, Odom says he's NBA-ready NOW ... and just got an offer to play in the prestigious Drew League in Los Angeles.

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."