I have leg pain in the my left buttock and calf and numbness and tingling in that foot. My doctor diagnosed it as Piriformis Syndrome back in November of 2015, I found out what exercises to do (my wife works for a Physical Therapist) but to date am not getting any results/relief. When I called my doctor, they want to send me to Physical Therapy. From what friends have told me, those same symptoms could be other ailments, such as Sciatica and/or back disc issues and probably others. Is there any tests that can definitively say what my problem is, or at least tell my what I don t have? So far, diagnosis is from physical exam only.