3) on checking the reliable hollywood news sites, tmz, perezhilton etc etc... nothing.
This is the biggest indicator it's a hoax - if a celebrity like Charlie Sheen had even been rushed to the hospital, they would know and would have posted something.
Also, if you actually look at the twitter feed, only seven tweets have been sent out by this person - every single one of them about this supposed incident. I don't think anyone who was actually someone's friend would create a twitter account for the express purpose of advertising their friend's health issues.
Also, given the mere five people following this person, I find it likely that the author of this thread is the creator of that account.
