Question
 I don't see a problem with having a half piece of toast as long as u chewed it up very good.  But dont you have a nutritionist or someone that u can call and talk to.
  You need to be drinking more than 20 ozs of water because if you still have diaherra then you can get dehydrated and u dont want that because then you'll have to go to the er and get an iv for that.  Personally I think you should call your doctor or a nutrionist.
Vanessa