hi superman. heart palps are very common. anxiety can cause this. it is a very common symptom of anxiety. doing deep breathing exercises help. i use this technique. breathe in via the nose, deep breath, hold for a few seconds and slowly exhale. being under stress and pressure can cause this too. you have been given the all clear, so try not and over think it. walking is good. take some weight off and clear ya head. have a chat with ya doc about your anxiety and stress. there are various treatments, medicine, coping skills etc. keep talking with ya doc. welcome 2 the forum. i don't know much about hernia, gastric, a little as i take stomach pills to drop the acidity.
THE HAPPY TURTLE.
NOT DEAD YET!!!!! STILL KICKING AND SCREAMING!!!