Hi there. It may sound difficult to believe it ,but the nerves which supply your forearms and hand, start at the level of spinal cord and on their way towards the forearm and hand regions which they supply, the course of these nerves pass through difference fascial and muscular planes that can make them susceptible to entrapment neuropathies. Its a group of conditions where a nerve gets compressed between a muscle and a bone, or between the fibers of a muscle that it pierces or passes through. Also, the compression can happen when the nerves are travelling around a blood vessel which can mechanically put pressure on them. Usually patients who would be having such a problem present with a dull aching pain over the arm and forearm. If it is not too severe and does not cause any neurological deficits then conservative management with Pregabalin and Vitamin B complex tablets, activity modifications and physiotherapy can be started which will provide relief. Avoid the activities which exaggerate your problem.