Nurse!

10:50 AM PT -- We're told Lindsay was just released from the hospital because her fever broke sufficiently, but her joint pain is still intense. Doctors referred her to a specialist.

We're also told Dina Lohan is on her way to London.

Lindsay Lohan is in a London hospital with a rare, incurable virus she apparently picked up in Bora Bora ... TMZ has learned.

We're told Lindsay contracted chikungunya, a virus transmitted by mosquito bites that causes fever, joint pain and fatigue.

Lindsay vacationed in Bora Bora over the holidays and then flew to L.A. to shoot an Esurance commercial ... we believe for the Super Bowl.

Lindsay began complaining of the illness just before New Year's. She then went back to London where she became so ill she couldn't walk.

Lindsay is currently in King Edward VII's Hospital ... the same place the Queen gets treated. They're keeping Lindsay because she has a high fever and the joint pain is unbearable.

As for her prognosis ... we're told the joint pain could last for months.

BJ Penn slammed his head against a solid wooden bar 3 times in anger ... before the ex-UFC champ went outside and got into a fight this weekend ... bar sources tell TMZ Sports.

We're told ... BJ was a "perfect gentleman" when he arrived to the South Shore Tiki Lounge in Maui on Saturday night -- but became agitated and at one point began banging his head into the bar.

"He was definitely aggravated at something," one source tells us who also says Penn did NOT appear to be drunk.

"He only had one drink. At first he was okay, then he was hitting his head on the bar .... and 20 minutes later he was outside fighting."

As we previously reported, Penn allegedly attacked one of his friends in the parking lot -- and reportedly injured the guy so bad, he was hospitalized for a broken eye socket.

Stephen Belafonte has done what Mel B did last month ... landed in the hospital ... TMZ has learned.

Stephen showed up at the Cedars-Sinai ER Tuesday AM ... complaining of back pain. We're told he says he doesn't know how he hurt it ... but it's gotten bad enough that he needs medical help.

Mel B took him to the hospital and is by his side.

Peter Mayhew, a.k.a. Chewbacca, has been hospitalized for pneumonia.

The guy who's played Chewie since the '70s cancelled an appearance over the weekend at a comic shop in Texas ... and "Star Wars" geeks went into panic mode when they heard he fell ill.

Peter's wife had good news for his fans, writing on Reddit, "He will make a full recovery, and hope to be discharged within a few days. Doctors are incredibly happy with his improvements."

The 70-year-old is set to reprise his role in the upcoming trilogy ... including "Star Wars: The Force Awakens."

11:30 AM PT -- Tiger's agent Mark Steinberg says the tooth was knocked out at the skiing event ... claiming a photog accidentally smacked the golfer in the face with a camera after the race.

"During a crush of photographers at the awards podium at the World Cup event in Italy, a media member with a shoulder-mounted video camera pushed and surged toward the stage, turned and hit Tiger Woods in the mouth."

He adds, "Woods' tooth was knocked out by the incident."

Hole in one ... mouth.

Tiger Woods proved the old adage ... old wounds never heal ... when he flashed a toothless grin after his GF Lindsey Vonn won a World Cup alpine skiing race in Italy this weekend.

Tiger was undercover at the race ... courtesy of a mask featuring a skull ... which had a full set of chompers.

But when he moved in to kiss the victorious Lindsey, the mask went down and Tiger showed what appeared to be the remnants of what became one of the most famous domestic disputes ever.

So, how'd he lose the tooth? Rewind to that Thanksgiving night when Elin Nordegren reportedly threw a phone at him, destroying at least one of his pearly whites.

Hope the tooth fairy paid well.

"Real Housewives of Beverly Hills" star Yolanda Foster says her Lyme Disease has gotten so bad, she can no longer read or write.

In a blog for Bravo, Foster (who has had Lyme Disease for three years) says she relapsed last month and has had a hard time recovering.

She writes, "I have lost the ability to read, write, or even watch TV, because I can't process information or any stimulation for that matter. It feels like someone came in and confiscated my brain and tied my hands behind my back to just watch and see life go by without me participating in it."

Foster describes herself as being "of no use to anyone or anything," but says she will continue to fight and is thankful for the support from her family and friends.

Early Monday morning, Yolanda posted a photo from a hospital in Singapore, writing, "I guess God gives his hardest battles to the strongest soldiers."

Leon Spinks has ALMOST conquered the chicken bone that nearly killed him -- because he's finally out of the hospital and recovering at a rehab center ... TMZ Sports has learned.

We broke the story ... the boxing legend underwent several major surgeries after a piece of a chicken bone (which he ingested during a chicken wing eating session) got stuck in his intestine and wreaked havoc on his body.

But good news!!! We spoke with Leon's wife Brenda who tells us the former heavyweight was finally released from the hospital around Christmas ... and has been in a rehab center ever since working on getting his strength back.

"He's doing much better but it's a slow process," Brenda says. "He was in bed for two months. It takes a lot out of you."

We're told the doctors let Leon spend the holidays at home so he could be with his family and friends ... and then moved him back into the rehab center where he's been recovering ever since.

So when will Leon finally get to go home for good?

Devon Still's ex is waving the white flag in their fight over child support -- telling TMZ Sports the two sides have reached a financial agreement that's in the best interest for their daughter Leah.

The Cincinnati Bengals player -- whose 4-year-old daughter is ferociously battling cancer -- had been at odds with Leah's mother ... who claimed Devon wasn't living up to his end of a "voluntary" child support arrangement they struck over the summer.

Leah's mother, Channing Smythe, claimed she needed the cash for living expenses ... saying she couldn't work because caring for Leah is a full-time job in itself.

But now, Channing says the two sides were able to work out their money issues -- telling us, "He is helping me out financially" ... noting that Devon is still playing a huge role in parenting Leah.

"I am very happy that we are working together for Leah."

One of the "Mob Wives" got whacked -- Ramona Rizzo was hit by a car while walking in NYC, and the perp fled the scene.

TMZ has learned NYPD is investigating the incident -- Rizzo says she was crossing Fifth Ave and 55th St. on Tuesday night when she was hit. Her rep says RR suffered bruises and internal bleeding.

An ambulance took her to a hospital ... where she got treatment for a couple of days.

Ralphie May was a mile high during his concert in Colorado Thursday night ... so wasted the cops had to step in.

The concert started out well ... the opening acts were great. But things went South when Ralphie tried to take the stage ... he was so slow it took forever.

When he got the mic things got worse. Audience members tell us he couldn't string a sentence together, couldn't finish jokes, couldn't remember what he had just said.

Audience members started yelling at him to start telling jokes, then demanded refunds. Some die-hard supporters yelled back at the hecklers and it went all Cosby.

Ralphie finished the show, but by then cops had come to maintain order.

Ralphie's camp tells TMZ ... "He was like a kid in a candy store, being in Colorado for the first time since pot became legal." They add, "We believe in conspiracy theories, we think Cosby snuck in and drugged him. We're pressing charges because we're within the statute of limitations."

We're told what really did Ralphie in ... edibles.

Ashley Hamilton's attorney, Keith Davidson, tells TMZ, "Unfortunately, Ashley's friend was the victim of a violent crime. Ashley was acting as a Good Samaritan whom escorted his friend to the medical center."

Davidson added, "Ashley accepts responsibility for his actions and regrets the misunderstanding. He looks forward to addressing this situation at the appropriate time and thanks the LAPD for their tremendous work in this and every case. The brave men and women of the LAPD are truly LA's finest."

Songwriter Ashley Hamilton was arrested at a LGBT medical center after impersonating an officer in order to get special treatment for his friend.

Law enforcement sources tell us ... Ashley took a friend to the Los Angeles LGBT Center Tuesday afternoon, to get emergency care. The waiting room was crowded and we're told Ashley asked the person at the counter if his friend could see a doctor stat. The staffer said they would have to wait their turn.

According to law enforcement ... Ashley took it up a notch by flashing a shiny badge, saying he was a cop. It worked, because the friend got immediate treatment, but the inquisitive staffer then asked George Hamilton's son where exactly he worked. Ashley confessed he wasn't really a cop.

The indignant staffer called 911, police showed up, questioned Ashley -- who admitted he flashed a badge that was a movie prop -- then they arrested him for impersonating an officer.

He was taken to the station and released Wednesday morning.

London Rene is healing on both the inside and outside following the stabbing/slashing attack last month ... but he refuses to even look in the mirror to see how his scars are healing.

Rene and his "Mob Wives" star girlfriend Natalie Guercio were out in New York City Tuesday night, where he explained to our photog he still has a long road of recovery ahead of him.

Rene says he has yet to return to work or exercise and says he has never (and will never) look at the photos of his gruesome injuries. In fact, Rene says he even avoids mirrors now because he doesn't want to see how he looks.

The terminally ill fan Eminem visited over the weekend, passed away Monday afternoon ... just about 24 hours after he got to meet his favorite rapper.

17-year-old Gage Garmo -- who was battling a rare type of bone cancer called Osteosarcoma -- died the day after Em arranged a secret visit to Gage's home Sunday ... and spent an hour talking and hanging out with him.

Gage's family said the visit really raised his spirits.

Eminem isn't always the angry rapper who rips people on tracks ... sometimes he's the sweetheart who visits the home of a terminally ill fan ... and doesn't tell a soul about it.

The fan in question is 17-year-old Gage Garmo ... who has been diagnosed with Osteosarcoma, a rare form of bone cancer, and has been told he only has one week to live. Just three days ago, Gage's friends and family started up the hashtag #GetGageGarmoToMeetEminem ... in an effort to ... well, it's obvious.

And it worked. We're told Em arranged for a home visit at Gage's place in Michigan ... which is only about 20 minutes from where Em lives.

We're told Em was adamant he did not want the visit to become a media spectacle -- and quietly arrived to Gage's home around 5PM Sunday.

The two spent around an hour together -- talking and hanging out. We're told the whole thing meant a lot to Gage, who was in good spirits during the visit and after.

The Real Slim Shady ... is just a big softy.

Joan Rivers' throat clinic just got a huge slap on the wrist after a federal investigation -- and now a ton of patients will have to get treatment somewhere else.

As we've previously reported ... the Dept. of Health and Human Services found a ton of flaws at Yorkville Endoscopy Center after Joan's death -- and gave the clinic a list of things to improve ... or else.

Well, according to a new DHHS report ... Yorkville still doesn't pass muster in a bunch of areas -- most interestingly ... failing to properly complete and document post-anesthesia evaluations of patients.

TMZ broke the story ... the clinic director Lawrence Cohen is on record saying it's not cost-effective to pay an anesthesiologist for procedures like the one Joan was getting when she died.

As a result, feds are cutting off Medicare reimbursement to Yorkville -- meaning, if you're a Medicare or Medicaid patient ... your benefits will no longer be accepted there as of January 31.

Veteran comedy actor Taylor Negron died Saturday ... this according to his cousin -- and he had been reportedly battling cancer for years.

Negron's cousin Chuck Negron -- lead singer of Three Dog Night -- confirmed the sad news with an emotional video ... saying the actor was surrounded by family when he passed away.

Taylor had roles in a slew of TV shows ... as well as famous movies like -- "Stuart Little," "Bio-Dome," Nothing But Trouble," "Fast Times at Ridgemont High" and "Angels in the Outfield."

He was 57 years-old.