http://orthopedics.about.com/cs/spra...piriformis.htm

I get a similar thing, but no numbness or loss of control.
My chiro takes care of mine when it is acting up.

If hyper-mobile it may be an ongoing thing - chiro adjusts and then depending on what you do it can go out again... and sometimes it just takes some retraining of the muscles & time to keep the adjustment.

Can't believe drs that won't at least send you for a PT evaluation....glad you have helpful chiro though.

I looked up online videos for stretches, maybe some of these will be of help-
http://video.google.com/videosearch?...8&sa=N&tab=wv#