Im 3weeks post op gatric bypass and im still feeling sluggish i have had some episodes where my heart was racing i thought i was having a heart attack i called my surgeon he referred me to a cardiologist who thinks that its dumping syndrome but it happens even when i don't drink or eat it feels like anxiety attacks but im getting ready to do lots of test that the cardiologist orderd has anyone experience this im trying to be strong but it seems like Now depression trying to slide in