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Bret Michaels, reality TV star and singer for the 80s rock band Poison, is in critical condition after suffering a brain hemorrhage. Doctors have been unable to determine the source of the bleeding in Michaels' brain, and he will remain in the hospital to be closely monitored.

CBS' Minneapolis affiliate reports the hemhorrage isn't the only condition the ailing rock star suffers from.

Anchor: "Doctors are still trying figure out the cause of the bleeding of the base of his brain stem. Michaels is a life-long diabetic. He had an emergency appendectomy two weeks ago."

A neurosurgeon on Fox News says that Michaels' other ailments probably didn't cause a hemorrhage or aneurysm — in fact, this could happen to anybody.

Anchor: "He had his appendix out, about one or two weeks ago, he's a diabetic, either of those two things play into getting an aneurysm?"

Stern: "I doubt it, I doubt it. The most common co-morbid factor is hypertension, and there's no evidence from what I can glean that he was a hypertensive. On the other hand, most people who have aneurysms, and the incidence is about ten per hundred thousand of the population so it's not an uncommon event, it just comes on suddenly."

People Magazine says the hemorrhage could have been caused by a brain aneurysm or an "abnormal artery-vein connection" and lists the symptoms Michaels experienced.

"the headache...felt 'like [getting] hit in the head with a baseball bat over and over again.' ... Often referred to by doctors as a "thunderclap headache" because of the intensity and suddenness of the pain, such headaches are a tell-tale symptom of...brain hemorrhage."

In an HLN interview, a member of the band Creed wondered if Michaels' condition could have something to do with an onstage accident at the 2009 Tony awards, a question that has also been circulating the Internet.

Tremonti: "Maybe when he had that set collapse on him could have had something to do with it."

Voice: "Yeah that was at the Tony awards, wasn't it?"

Tremonti: "It was pretty recently, yeah. But that's too bad, I heard he's a very, very good guy and it's tough, there's lots of bad things happen to a lot of good people and it's a shame."

On TMZ, Michaels' "Celebrity Apprentice" boss Donald Trump says the rocker's nature will help him pull through.

"He turns out to be an amazing competitor and ultimately that is the thing that could save his life."

A Web MD doctor's blog reports that few people with brain hemorrhages ever fully recover, but the fact that the rocker is conscious is "a good sign."

Writer: Elizabeth Eberlin