I forgot to say that if you have a, uh, slow digestive tract you probably do not want to take the Maalox chewables. I'd try the generic simethicone tablets, though (Walgreens store brand is what I use). Simethicone isn't really a drug. A doctor explained its chemistry to me once, but I cannot remember what he said. The mechanics are that it simply helps the gas in your digestive tract to coalesce, making it easier to expel naturally. It does not change any body functions. Forgive me if all this is basic knowledge that everyone knows....I didn't know it until the doctor suggested it to me.
Yes, my belly does grow quite a bit when I start to feel this way. In fact, I'd estimate that it sometimes protrudes to almost twice its normal size. Sometimes it just gets a little bigger and I just notice it while looking in the mirror (feeling nothing), but once it gets that big I'm absolutely miserable. There's "bloating", and there's "I'm so bloated I could burst and it feels like all my guts are compressed together". It's more than uncomfortable...it's literally nauseating.
And I was also diagnosed with chronic gastritis. I finally gave up on going to doctors, but the last time I went through all of that they thought my gastritis was caused by anxiety, and that my bloating stomach was a "modified panic attack". I was in disbelief at first, but the more I thought of it, the more and more sense it made. I'm not sure if anxiety caused the stomach problems or if the stomach problems caused the anxiety. I think it was the latter: I got a "freak" stomach problem that was slow to go away, but it would have if it hadn't gotten into my head.
Anyway, I hope you feel better.