You're not annoying, I just now saw your post! I don't really know how to answer though! (I hope that doesn't come off wrong...)
Sometimes the stomach ache (well, in my opinion, which is NOT a doctor opinion, mind you!) I think is the body's way of saying "don't do this."
I have experienced the stomach pain afterwards that you describe, and that is what I chalk it up to...as a guess though.
Is there someone you can talk to (like a T or a counselor) about different ways to cope with the emotions that are coming up for you?