My forearm aches and is tender just proximal to the wrist joint. i fell on an outstretched arm 2 weeks ago...xray was clear so why does it still hurt?

Injury: It is likely that you sustained injury to muscles and/or ligaments and these injuries take weeks to heal. If there is associated swelling and marked tenderness or in the pain is worsening instead of improving, see an orthopedic surgeon for evaluation and treatment and another x-Ray or a bone scan may be ordered to look for bone injury. In the meantime avoid any stress on the arm or wrist.

See your physician: Causes may include clavicular or proximal humerus fractures, glenohumeral dislocation, acromioclavicular sprain, rotator cuff tear, or peripheral neurve injury. See your physician for a detailed physical exam. http://www.emedicinehealth.com/shoulder_problems_and_injuries-health/article_em.htm

Make sure: you don't have a fracture that wasn't seen in the initial x-ray. It an take a couple of weeks for some fractures to be visible on x-rays. Check with your doctor if you are still having pain. Absent a fracture you may have injury to the tendons and ligaments of the wrist.