So for about 4 months now I've had this on-off stomach ache/upset stomach. I've been feeling so sick I've lost around 30 lbs because I'm too scared to eat half the time. I've gone to a doctor for it and just yesterday I had a colonoscopy. Apperantly everything was normal. I have no idea what is going on and so far, neither does the doctor.

Has anyone had a similar problem? I can't live like this, I've lived off crackers and bread for the most part, once in a while I feel good enough to eat a small meal but this is rediculous. If I can't figure out what's wrong I don't know what I can do.