Dear friend, welcome to HCM!
The symptoms are vague.
Is there distension of the abdomen? Are you able to pass gases and stools normally?
Excessive gases can cause this.
But with surgery and known adhesions, we should be watchful for obstruction of bowels. The sonography
has ruled it out.
But intermittent partial obstruction may occur. Ultrasound
may be less accurate in the presence of excess gas.
Please get evaluated if this is not settling, especially if vomitting, distension, constipation
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.