Two weeks ago I choked and coughed very hard and I heard a sound like cotton cloth tearing. It didn't hurt much at first. The next day it was decidedly sore just under my shoulder blade, and it is like the opposite of a rotator cuff injury, it hurts to reach down instead of up. Right now the company doctor has me going to a physical therapist for massage, ultrasound diathermy, minor stretching exercises. So far he has not performed an MRI,...is this a good course for a possible lat tear?