Weird ache.weakness in left forearm and elbow?

Have your dad read my answer. You might have what is called Cubital Tunnel Syndrome. It much like Carpal Tunnel but it effects the elbow. The Ulnar Nerve runs inside the of the arm from the elbow to the hand.. It becomes inflamed and eventually the nerve becomes entrapped and the pain becomes intense. Some Doctors treat it with Anti inflammatory Drugs, a Brace and Physical Therapy. Other Doctors prefer to do minor out patient surgery and released the nerve.. See your doctor. Your Doctor needs to do a nerve conductive study. Small amounts of electricity are put into the hand and arm and it will determine if the nerves are properly firing and the coarse of treatment .Cubital Tunnel Syndrome is a repetitive motion disease,too.Things like computer usage, video game, texing and extreme force can cause this condition.