Right forearm has been weak for about 2 months. Can't lift like I used too. Curling motion is fine, but if I turn my palm face down and grab something and try to lift, it is super weak and hurts. Also very difficult to squeeze something firmly in my hand no matter the hand position. Now it is a constant ache that surges to a sharp pain about every 30 or 45 seconds. Doesnt feel like a strain or bruise. feels deeper than that. Difficult to sleep. Tried heat, cold, ibuprofen, massage. Nothing helps. Any ideas?