Sometime things don't go as planned, hopefully plan B will get you back to normal. Be sure to ask the therapist and doc about any concerns, or question. I discovered a problem I had was related to an old knee injury in 2006, it was continually stiff and causing other problems, but a stretching exercise helped cure the problems. I read an article by a trainer in Western Hunter, and thought about what a physical therapist told me, about the need for stretching, it worked. Take care and get well.