I am a 12 year old pitcher and feel a sharp pain in my forearm when pitching relatively hard. I play two leagues and throw a lot. Most of the time, this pain occurs in pitching sessions/practices and occasionally games. I have realized it is noticeably worse in the cold weather. This pain happens for a split second when pitching then goes away directly after, sometimes leaving a “tender feeling”. I am wondering if this could be anything serious seeing opening day is right around the corner for me. Any opinions would be greatly appreciated.