I am a physically active male, 47 years old. There is intense pain in my forearm, only while in certain angles. When I lift a reasonably heavy dumbbell perpendicularly from adjacent to my ear. My left hand does it easy but my right arm is unable to do so. I cannot pinpoint where the pain is and hence not analgesic can be used. I also ride a two wheeler. Is this like a form of tendonitis or plain muscle injury? Should I see a orthopaedic surgeon about this issue or a sports doctor?