I haven't posted here in a while as things have been going ok. However, for quite some time now, the muscles in the bottom of my butt and in my groin clench involuntarily all the time. The moment I wake up to the moment I fall asleep. They don't spasm or knot up. They just clench, like I'm holding back a bowel movement. They do this all by themselves, but I am able to relax them when they become noticeable. Then they immediately start to clench once relaxed. On a bad day, this will also spread to my core muscles so I cannot relax at all. Pain management doctor and PCP have no ideas. Anybody else experience this?