I underwent surgery for a perforated duodenal ulcer just before Christmas 2010.  I was in excruciating pain for 4 months following the surgery in the lower right hand side of my stomach (totally unrelated to where the ulcer was situation.  I have also been left with an unusual balloon like lumpy areas in the middle of my upper abdomen.  I was extremely fit prior to the operation and very slim.  Since the operation I have put on some weight and filled out but now have a fat layer over my stomach that I have never had before in my life.  I always had an extremely flat stomach.  My question is why do I have this balloon type lumpy area in the middle of my upper stomach now - Why do I now have excess fat covering my stomach I never had before and when can I commence doing serious core workouts (together with total body workouts)?  Thank you for your assistance and help in this matter.  To be honest I wish this had never happened to me.  It was a traumatic experience as the surgeon (prior to the op) decided I needed a bag as my bowels had burst (which they had not).  Thanks
Welcome to Chat Doctor .1. What you're presently experiencing similar to the bowel gas formation.2. The excess weight you have gained with the fat layer over your tummy could be because of operation you might have not been physically active, and not moving the operative area and things like that.3. Yes workout is good - but don't do as you have planned, do it gradually with a brisk walk 30 - 45 min and then go on, as you gradually increase.4. Get an examination of the abdomen done by your doctor when ever you get appointment and then get an ultrasound abdomen done - which will rule out the lump which you are thinking of.5. Try to avoid junk /spicy food and alcohol for at least 1 month and see if you find any difference. Hope it helps. Anything to ask ? Do not hesitate. Thank you.