I've had benzo belly since the taper. It's from withdrawal, I have moments during the day when it just disappears. The only medication I try to decrease the pain are antiacids but they won't heal my stomach.
What I did: I discovered which food made me feel worse and stopped eating them. I don't eat carbs, dairy, fry, chocolate, chips, don't drink coffee nor alcohol. I've always eaten those my whole life, but benzo belly is INSANE, I had to readjust my diet. Should I eat those and OMG, gas and more gas, strong pain, nausea, bloating, distention, I looked like I was on early pregnancy.
I eat: all meat but pork (salty) + all vegetables with olive oil + all fruit but the acid ones
I drink: water + coconut water + apple juice rarely
I must say this diet made my skin 100% better and I don't gain weigh anymore. Of course it sucks, no sugar and very little fat... no pleasure on eating, but I got used to it, I've been doing this way for 2 weeks now.