I’ve been getting what I hope are just muscle cramps in an odd location. Most often they happen when I’m pulling off a tight shoe while bending forward and crossing the foot with the shoe over the other knee. (I hope that’s clear enough!) When I’m doing that, there’s sometimes a sudden sharp pain in my outer lower abdomen. It always stops in a little while if I stand up and maybe bend backwards a little, and there’s no residual pain in the intervals (typically a week or more) between occurrences.
By the way, this has happened on both sides of my abdomen, but I think it’s always on the same side as the arm I’m using to pull off the shoe.
I’d brush these off as just muscle cramps except that they feel like they’re rather deep below the surface. Based on anatomy diagrams, it looks like the internal oblique and transverse abdominal muscles are both in that region and lie beneath other muscles. Is it plausible that the episodes I described are just cramps in one of those muscles?
By the way, I have Addison’s disease, and managing my electrolyte balance while training regularly can be tricky, so I do get muscle cramps fairly often - though usually in more normal locations.