What do these symptoms indicate?

I think they indicate that you should go to see a doctor and see if you can see about getting some sort of diagnosis, i am no doctor, but if you have constant runny bowl movements and upset stomache, that doesn't sound like its too good to me. It could be as simple as you could have developed an allergy to something your eating. Some people later on in life develope an allergy or can no longer eat somethings that are in breads and other foods called GLUTENs. I know quite a few people who have had similar problems when eating those products.