I fell a year ago and sprained my left ankle really bad. In the mix of that when I fell, I fell trying to brace myself and apparently I hurt my arm but didn't realize it until a couple of months, I was busy pampering my foot, I didn't focus on the pain in the left arm... anyway the pain is horrible at times, there are times when my are gets really stiff sometimes in the shape of a boomerang, other time it feel like I have a large wide band and it wont bend completely. It also very sensitive to cold air where I have to cover it up to keep it warm I was told by the dr. I was seeing, that there is a cyst in my arm and if it didn't hurt, not to bother it, well now my whole arm hurts, also sometime my finger tingle or get stiff. What's going on?