I was hurt a work December 1st (a paitent fell and I twisted and fell with him) I hurt my back and shoulder. Doctors kept saying it was upper back strained muscles. Started to go to physio in January and they said I had a sprained verterbrae. So physio had been working on me, the last few weeks they have been doing strength tests on both sides of my body and my left side fails miserable, no matter how hard to try I can not lift my arm when the therapist pushed down. (Not sure what those tests are called) I also have diminished sensation on my left side.