I to have this problem, after a major hysterectomy they had to put the major port where my bowel was so they had to move my bowel, ever since then it created 2 hernias and then a seroma estimated the size of a baby which solidified, since then I have that sensation of movement like s baby, I thought I was going crazy and it can actually make me feel sick, my new doctor I’m seeing says it could be scarring, so we have to watch it because scarring can spread and actually wrap around the bowel and then I’m in trouble, so glad that I’m not the only one, just want an answer