I haven't read enough of the stories to know about Sherlock or John's canon character traits, so if they already exist, please excuse me!

Anyway, don't you think that Sherlock, as played by BC, would be a hypochandriac? I know there is no direct evidence in the shows, but the way he neglects to eat and sleep would make him vulnerable to any bugs floating around and I just have a feeling that he would get a sniffle and think he had pneumonia, get a headache and think it was a brain tumor, and OMG, what about manflu!

Whereas John would soldier on, no pun intended, until he collapsed and Sherlock had to pick him put and take him to hospital, all the time complaining about his own bad back or somesuch.