Yes I did get lots of spasms, but mine are reducing pretty quickly ( touch wood ), it is as J57 says hyper-tonic pelvic floor muscles. If you are able try and go for a good fast walk everyday, breathing down into the pelvic floor, and letting it all hang out ( tummy wise) we are the opposite to the prolapse ladies. Although Kegels aren't that good for any of us actually, it is more to do with posture, and Yoga was designed for the mans body, not ladies and there are a lot of the exercises in yoga women shouldn't do.
Also the problem is we are now really tuned into are pelvic floors, and notice far more than we did before, if you lie down and close your eyes and do body mapping, start at the top and work down , you will find all sorts of pains you just ignore, but this has now become tuned into our brains and central nervous system, which is why they give us the pain drugs to try and cut off the signals to the brain.
However I am not wholly convinced, because I now wake every morning pain free, and my pains don't start until about twoish these days, so of I was looking for it, my mind would make it happen in the am to. If you all understand that then well done.
I have had an almost pain free day today, but who knows what tomorrow will bring. Judith57 the golden rule for us is to NEVER sit on a hard chair again, even if / when we get mended. ( positive thinking).
Wanderer I think it would be a very good idea for you to go to the vulva specialist judith57 and I see, she gives a very thorough vaginal MOT. it's a way of crossing the Ts and doting the Is. She works along side the Physio, and uro/gynae she said Judith57 and I couldn't have found a better team.