I slipped and fell on the ice last night. My left arm took the brunt of the fall, elbow and mid upper arm hitting two protruding brick steps. I had immediate pain in my shoulder, mid arm and elbow which turned into only moderate discomfort. However, there is pain in all three areas when I try to externally rotate my arm, try to pick up something as light as an iPad and lift my arm up,. Is there a possibility it could be broken? I don't see any bruising and only minimal swelling.