My spouse has what feels like a muscle spasm below
Cholecystitis is possible.
Hello dear, welcome to Ask a doctor service.
I read your query and here is my advice.
I think your wife is suffering from cholecystitis or inflammation of gallbladder.
I don't think there is any muscle spasms at that region that you are referring to.
Most probably these contractions have to do with gallbladder inflammation and/or gallbladder stones.
Probably she should do an ultrasound and a liver chemistry to check it.
You can send me these results.
Hope I have answered the question.
Let me know if I can assist you further.