You make an interesting observation and that is the possibility of abdominal adhesions. I do have, what can only be, an adhesion from an old resection of my colon, where 6 in. of my colon was removed due to an abscess. I have over the years had this sensation of an "indrawing", spasm-like feeling in that area. It's not been frequent enough, or of such a nature that it is a real concern, and while I've mentioned it to doctors, they don't even blink an eye!

I don't think, however, that it is too likely, in my case anyway, to be related to this weird tightness! The difficulty with all this, in my opinion, is that the body is so complex and yet, so many ailments seem to have very similar symptoms which hamper getting an accurate diagnosis!