torn arm ligament or muscle?

I was lifting a prefab wall (heavy) and heard a noise of some kind which was instantly followed by extreme pain.
The pain is in my forearm somewhere between the wrist and elbow.
I am presuming that this is a torn liagment or muscle and really nothing can be done about it except wait it out.
It has been over a month and it is still not good.
I have not been very careful with it and have banged or pulled on it accidently.
I scream to often still.
Is there anything else likely that could be wrong? Also, is there anything I can do about it other than seeing a doctor?