Have your gallbladder checked,I had that problem had to have it removed that helped then I had a scope done and had the doctor widen the hole so now I can eat and drink more sometimes the do it to small.I'm still struggling to do my liquids but if I feel hydration coming on I just call and they set me up to come in to e.r and get a bag of fluid.my docs wouldn't help so I found another doc to help