I like Susan Boyle. The hype was way out of proportion at the time of BGT, but she's a pleasant enough singer. Not anything outstanding, but still nice to listen to. I'm happy for her success - I enjoy her albums in an easy listening sort of way, and am looking forward to her next one.
The OP's post sounds like a load of rubbish. Surely if Susan had been hospitalized and/or was in seriously poor health, it would have been leaked to the press by now?