@kremer1 After reading about your gall bladder surgery, it seems possible that you may have related surgery scar tissue that is tight that may cause your abdominal symptoms. I learned from my physical therapist about myofascial release therapy which can stretch out overly tight fascia and allow tissues to move, and also restore the fluid circulation. Here is a discussion where you can learn more. It may be something to try before you have further surgery. If this helps, you would have an answer. I have done a lot of myofascial release and it has a lot of benefits.
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/
There is a provider search at http://mfrtherapists.com/