Basscat, where, specifically is the pain? Is it the inside of the elbow (the part that lays against your body when your arms are at your side)?

Or, is it the outside of the elbow (the part opposite your body)?

Or elsewhere? Does it hurt all the time, during everyday activities?

Tendonitis is a somewhat generic term that describes inflammation or some kind of recurring microtrauma of tendons that can be caused by different things.

Common ones are Tennis Elbow (pain on the outside) and Golfer's Elbow (pain on the inside). You may need to see a doctor for a diagnosis, but I wouldn't panic. Lots of weight lifters get this kind of pain once in a while.

It's usually a forearm tendon causing the problem, and it's not necessarily a chronic problem. One thing that can be a problem is using too heavy a weight too soon. It seems like more people than not do this. Especially with biceps.

I think (this is only my own theory) that doing specific forearm work can help prevent some of this.