hi, i have been working out for almost 8 months now,i lift heavy n do a lot of running, 5 months ago i was doing tricep extensions when suddenly i felt ssomething like peeling off the back of my tricep.i was in alittle pain for the next two or three days so i took a week off from gym.After that the pain was gone but whenver i extended my arm to full extension i feel clicking in my muscles covering the inside of the elbow(Where forearm meets the lower tricep and bicep tendon) nothing happens when i curl it but when i extebd it i feel the clicking every single time.There is no pain,swelling or numbness or sound.I only feel it when i touch it during full extension of the elbow.Can you please tell me what it could be?