I know one guy with it and he is crazy... nice bloke when well medicated though, the other person I knew who had it, jumped off a mountain. This person really struggled all her life, very sad.
Bi-Polar is being bandied about a bit too much for my liking and my experience with people who have it, (I know of a few more) well lets just say it is pretty obvious something is terribly wrong.
That said, I'm not saying that my observations are accurate.. I'm not a doctor/phychiatrist. (Or an English teacher)
I don't assume that Joey or T. Smith are lying, saying that you have a mental disease especially being a public figure (of sorts) would be difficult to say the least. I just hope that it's not a case mis-diagnosis, like the AD/HD in children was in the late 90's early 00's.