NSAIDS can wreak havoc on anyone's digestive system. Some suggestions for you, as you still have trouble with bloating, etc. You could get a blood test done by a naturopathic doctor for food sensitivities (different than allergies), as food intolerance is a common cause of bloating, even if your stomach acid is up to par.
You could also try taking an Iodine supplement, like Iodoral (2 tablets, 2x day for 6 mos). This was most effective in repairing my digestion issues (acid reflux, nausea, bloating, fluid retention, mood swings, etc.) Iodine deficiency is a commonly overlooked cause of acid reflux/low stomach acid. However, I find it most effective if I'm not eating gluten. Most wheat products contain bromine, which blocks the absorption of iodine.
I can't believe someone would suggest this is an eating disorder. It's a VERY common issues, one which even the commenter is likely to encounter at some point in his life, especially with age, when the hydrochloric acid in our stomach depletes.