Hi, I just got my hiatal hernia repaired and got the sleeve surgery on March 20. I'm feeling pretty good even though I have pain between my chest. After I walk the pain tends to subside. I imagine its gases. I keep myself hydrated but I can't stand the taste of any isopure drinks. They make me nauseous and leave me an after taste. In other words I'm not getting my protein and that concern me. Has that happened to anyone else?