I think it should be checked out for sure.
I have the same thing from gallbladder removal...scar tissue. It's worse after eating hard to digest foods, etc. However (and this might be TMI), I have to be careful to make sure I go to the bathroom regularly. If I don't, the pressure from not going can really pull on that scar tissue more, really causing A LOT of discomfort. So, might that be a possibility? You don't have to answer aloud.
Regardless, it needs to be checked out, I think.
Good luck and let us know, hon.
KD