As someone who would have had Tommy John surgery had I been a ballplayer, I can tell you that the forearm thing might have had some legitimacy. When I was in college I had a partial tear of the ulnar collateral ligament in my elbow, which the doctor said would have probably needed surgery if I was a pro. Even for someone who was just throwing batting practice to little leaguers at the time, I was strictly forbidden to throw for 2 months, to give it time to heal. With the injury, whenever I tried to throw, I would get tingling in my forearm all the way down my arm to the fingers, and would have some soreness on the under side of my forearm, just below the elbow. The blog from Witrado said that they knew about it and it wasn't structural. If the forearm was a symptom, I have a hard time believing that there's absolutely nothing wrong structurally.