Nurse!

Rob Kardashian was rushed to the hospital and diagnosed with diabetes ... TMZ has learned.

We're told Rob wasn't feeling well over the weekend and as his condition worsened, his family became alarmed and Rob was taken to an L.A. hospital.

Doctors performed tests and diagnosed the condition ... and it was news to Rob. He had no clue he was diabetic.

Doctors stabilized him and as of this post he's still in the hospital.

Sources close to the Kardashians say this was a wake up call and Rob wants to start 2016 healthy.

Rob was last seen in public on an In-N-Out run this past June.

David Foster just put all the doubters to rest ... saying Yolanda Foster's battle with Lyme disease is very real and very serious.

In a statement obtained by TMZ ... Foster backs his ex, saying, "it is so frustrating to see headlines questioning her chronic debilitating illness." Foster's addressing several reports that have suggested Yolanda might not actually be as sick as she claims.

Foster gives Yolanda even more props ... saying he's proud of Yolanda's fight and how brave and open she's been in finding a cure for the disease.

It makes sense ... TMZ broke the story -- David's been the one to foot all of Yolanda's medical bills -- even after their split, so you gotta assume he knows what's going on with her health.

Video shot seconds after Lakeisha Holloway mowed down several dozen people on the Vegas strip shows the chaos on the street.

The video -- shot on a cellphone -- shows the injured laying on the street and sidewalk. You see people scrambling to provide help, before paramedics arrived.

Rikki Rockett is fighting oral cancer, and says it was caused by HPV ... the same way Michael Douglas got it.

Poison's drummer was on the Sirius XM show "Eddie Trunk Live" when he revealed his diagnosis, saying it all started over the summer when he had a cold and a sore throat. He says doctors at USC eventually did a biopsy and discovered a tumor at the base of his tongue.

Rikki says the human papillomavirus is behind his diagnosis -- "This is very similar to [Iron Maiden's] Bruce Dickinson, very similar to Michael Douglas, similar to [Aerosmith's] Tom Hamilton, as far as I know."

Been a rough year for Rikki -- as we first reported, he filed to divorce his wife Melanie in July.

The good news -- 54-year-old Rikki says he's been responding well to treatment and his prognosis is "excellent."

Ole Miss defensive lineman Robert Nkemdiche was bleeding -- and appeared delirious -- after falling out of an Atlanta hotel window this weekend ... so says the person who called 911.

On the recording, obtained by TMZ Sports, the witness says she was at the valet at the hotel when she noticed an emergency situation ... and then saw Robert.

The woman tells the operator she didn't see Nkemdiche fall -- but saw that he was in bad shape and in need of immediate medical assistance.

He was moving and breathing -- however, the woman says, "He didn't seem coherent, he seemed like he was delirious."

The woman also told the 911 operator the situation was so dire -- that people on the scene were requesting a defibrillator.

The surgery Boosie Badazz had to attack his cancer was more severe than anyone knew and way more expensive.

Boosie went under the knife on Tuesday and tells TMZ, the doctors removed half of one of his kidneys. It's called a nephrectomy, and Boosie says it worked like a charm ... docs believe they got all of the cancer.

Boosie says he's still feeling weak 3 days after the surgery, and his wallet's definitely feeling it too. He doesn't have health insurance, so he had to pay $90,000 out-of-pocket!

NFL legend John Madden is recovering after undergoing open heart surgery -- and is "expected to fully recover" ... so says NFL commish Roger Goodell.

Yolanda Foster thinks she'll bounce back now that she's split from estranged husband David Foster.

Yolanda's been battling a severe case of Lyme disease, and sources say she's convinced it got worse when things got rocky with David. Lyme disease attacks the nervous system and stress is the enemy.

Our source says Yolanda constantly leaned on David during their marriage, but toward the end he was traveling a lot and she couldn't handle the change and got really sick as a result.

Now that they've pulled the plug on their marriage, she has no expectation that he'll be around, and that's actually dramatically improved her health.

Yolanda's still struggling with Lyme disease, but she's mobile again and feels she's on the mend.

Kate Upton's gotta turn down the intensity when it comes to cornhole -- somehow she injured herself playing a sport so laid back, most people do it with a drink in their hands.

We got the supermodel at LAX, just a couple days after she posted a pic of her swollen and bruised right foot ... and she was still feeling the pain.

Watch as Kate explains how in the world she got hurt in the first place, and why the injury's forcing her to do one of the most UN-supermodel things.

The good news for Justin Verlander -- her face and bod still look pristine.

A female fan bit "The Walking Dead" star Norman Reedus on his chest at a zombie convention this weekend ... but the biter is now off the hook according to law enforcement sources.

Cops tell TMZ, Reedus -- who wasn't hurt during the attack -- declined to press charges against the biter since it was only a nibble.

A rep for New Jersey's Walker Stalker Con says event security was standing a couple feet from Reedus when the fan opened her mouth and tried to take a chunk out of his chest.

Cops and event security jumped into action and booted the biter from the convention. The rep says the woman has been banned from all future Walker Stalker conventions and other sponsored events where Norman is present.

Mariah Carey is hooked up to IVs in a NYC hospital after falling severely ill early Wednesday morning ... TMZ has learned.

Mariah is getting pumped full of fluids and vitamins to fight off a nasty bout of the flu. We're told she was so dehydrated and ill ... her team made the call to get her emergency treatment.

She started feeling bad after an appearance at Pier 1 in NYC on Tuesday evening. There was extra concern about her health because she has a huge performance Saturday night at Hot 97's "Hot for the Holidays" concert in NJ.

We're told she's going to be fine, and could be released later today.

Better safe than sorry.

Lil Wayne fell off his skateboard a few too many times ... and that's what led to the gruesome elbow scar he's now showing off with pride.

According to our sources, Weezy had the surgery last month after putting it off for as long as he could. We're told he wanted to avoid going under the knife, but eventually he gave in.

Wayne posted a photo of his mangled arm and wrote, "Skate lyfe!!!"

Is that a good thing?

This is the new normal folks ... Brielle Biermann -- daughter of ex "RHOA" star Kim Zolciak -- getting lip injections, because being 18 just isn't good enough.

It looks like this may have been a 2-for-1 deal, because Brielle and Kim covered their faces Wednesday as the arrived at LAX.

Brielle posted the gnarly procedure in time lapse. She says, "my lips are my biggest insecurity and I'm so happy with the results now!"

Lil Boosie is asking fans to pray for him because he just found out he has kidney cancer.

The Louisiana rapper posted his plea on Instagram, saying, "prayer is power that's why I'm letting the world know" about the diagnosis, but his announcement caught some people close to him off guard.

We're told Boosie's team was not happy he revealed his condition ... which is why the caption was deleted shortly after the initial posting. The photo of Boosie eating a meal remains on his IG.

Boosie is only 33, but he's been living with diabetes for years.

He just got out of prison last year ... after serving 5 years on a drug charge.

#prayfaboosie

'DWTS' dancing pro Anna Trebunskaya looked fabulous when she arrived at the big after-party at Beso Tuesday night, but an hour and 40 minutes later she was puking her brains out.

Anna beat a hasty retreat just after 11 PM but lost it at the front door. The gnarliest part ... she's wiping her mouth when someone asks her for an autograph and she obliges.

The concrete was spattered with blood outside the Miami Gardens home where St. Louis Rams WR Stedman Bailey was shot Tuesday night ... after a drive-by shooting left him and another man hospitalized.

A neighbor who says he spoke with police claims he was told officers counted 33 shell casings at the scene.

Bailey and another man were sitting in a car outside Bailey's family home when a car rolled up and opened fire at 8:45 PM ... striking Bailey twice in the head. The other driver was hit multiple times, reportedly while trying to shield two children in the car from the gunfire.

According to cops, the victims drove themselves to a nearby hospital for treatment. Bailey is listed in critical but stable condition and is set to undergo surgery early Wednesday morning.

Bailey's neighbor says the NFL player has a good reputation in the area and was not known for being involved in dangerous activity -- "he's a good guy."