not because I don't believe it is awesome, but I am not certified in it.

Without seeing you snatch, I will almost guarantee that the problem is with your drop. My though is that at the bottom of the drop that you are not getting your hips back first, which causes your arm/elbow to slow the bell down. Since the muscle that's cross the elbow are stretched, they can get pulled.

You could also have a muscle imbalance between the front and back of the arm - predisposing it to injury.