Sounds like a nerve issue to me. Could be that you torsioned your pelvis while bending forwards and a muscle in your butt decided to protest and now...

You know, I'm kinda toasted right now as Veronica would say. I'll look at this more closely in the AM after the wine has worn off. The wine I drank to make the waxing of legs etc less painful. It works for that but doesn't help me much on navigating TE.