The pain you are experiencing is over the top. Your PT may get uncomfortable, but that kind of pain you are experiencing isn't usually what should happen. My son is a PT. If the therapy hurts, he lets up, engages in a lighter massage, around the area of inflamation. If there is this much pain, call your physician and relate the information to him. Adjustments need to be considered in the kind of therapy you are receiving. I have had alot of PT on my spine, both before and after my fusion. I never had this kind of pain that you are experiencing regarding the therapy I received. Ache yes, knee dropping kind no. I hope you will call your psysician, maybe he will even want to see you. I will be keeping you in my thoughts today. I certainly hope your pain level goes down soon. ginnie