 [ Symptoms ] i had ovarian cancer and reflux surgery i still deal with constant nausea i can barely eat and i am unable to live life and go anywhere [ Disease ] the possibility in my opinion is hiatal hernia causing acid reflux in your esophagus and this alleviates nausea weak abdominal muscles and so diaphragm weakness can increase the possibility of the stomach to bulge upwards through your diaphragm to the thtiacic cavity and so causing nausea also an new endoscopy and repair of the hiatsl hernia can be the solution of your problem consider deep diaphragmatic breathing exercise to strength your diaphragm