Hi there,
I just saw your post and I am having similar issues with my 6 yr old son too. When he was an infant an A.M.A Dr. diagnosed him with acid reflux and put him on a medication until he was 6 months old. It went away so the medicine did not have to continue. He doesn't like to eat anything with tomato sauce on it, OJ, etc. a lot of the REALLY ACIDIC foods. He has been burping a lot (he is saying uncontrollably). Did you find anything to help your son? I haven't done a strict diet with him yet. I do try to keep those other types of foods away from him (which is pretty easy since he doesn't seem to like how they make him feel).
Please let me know what you ended up doing? and if it has helped.
Thank you
Renee