I'm still that way 16 years later. It's unpredictable though. One day I could eat dairy and be fine and the next day I could be on the toilet all day. I just never know when it is going to strike.
Pepsi is the same. I haven't had Pepsi in about 15 years.

I also can't have codeine since having my gall bladder removed. Anything with codeine in it gives me pains that are identical to gall bladder attacks. Horrible.