I've been kegel exercising at every stop light for thirty plus years. I kegel when I answer the phone, and when I hang it up. I kegel during sex.

Since all these places are next door-neighbors, can you kegel too much and make the sphincter get too tight as well?

You need to also reverse kegel atleast as much as you kegel. If you haven't been all along, I would only reverse kegel from now on for a while. Very possible you have an imbalance