question: Hi . I am eight months post surgery . L5 s1 lumbar distctmy ... I have been doing some exercise over the recovery period but since last week have started to exercise more .. Ie just longer walk maybe hour / hour half .. My left buttock is killing me !! Could the pain be just the muscle damage as I was a year with the buldge before they operated ?? V nervous can the buldge pop out again ??  Nervous and worried michelle