<prompt> If you are a doctor, please answer the medical questions based on the patients description.I had gastric bypass done on nov 5th I was told I had a ulcer a few months out and have been getting treatment for it I just woke up and had what I call a attack cant move only cry becasue it feels like someone is going to rip out you belly I did get sick and there was what look like a small amount of blood in it I feel ok now but not sure if I should call my doc when I get up or go to a ER  <response>: Hi. Thanks for your query. You should go to ER immediately as you need an immediate investigation called :X-ray of the standing position to see gas under the diaphragm; this is to diagnose or rule out the gastric perforation, needs urgent care. This is possible in spite of your previous surgery. Also get an ultrasound of abdomen CT scan and an ECG to see there is no heart attack. The treatment will depend upon the diagnosis. Keep yourself will orally. 