CharlieOneSix (post 62) - possible undiagnosed helicobacter pylori causing sensitivity to aspěrin? There's a very great deal of it about coupled with rumours that there's a lot of money to be made from selling antacids and more sophisticated products for life.
I'm surprised how few have had the chance to hear of Professor Barry Marshall and his Nobel prize
Barry Marshall - Wikipedia, the free encyclopedia and the relevant foundation
The Helicobacter Foundation .
Worth a look, perhaps?