I been experiencing upper left arm pain but only when i move it a certain way...im only 19 about 5'11 220lbs im worried about it and is there anything i can do about it!? Is it muscle knot or never knots? Pain started when i was driving , i drive with my left arm ... not the healthiest guy but really want to know your opinions... i dont have short of breath or have that squeeze feeling or cold sweats.
Sounds like rotator cuff issues. You can do a search for exercise for it and they are pretty simple to do with those band things. I've got the same issue going on. Doctor said to do those exercises for 4-6 weeks and then come see him if not better.