I am not sure what mine is, but there is sporadic pain or referral pain in the distal bicep tendon and bicep muscle, and back of forearm. About 3 weeks ago I did a light 12lb underhand (granny syle) med ball toss and from my wrist up the back of my forearm, and around to inside of my elbow and distal bicep tightened up big time in an instant.
It did not feel like a muscle pull, tear, or detachment more like instantaneous tendinitis. Past few weeks I just tested gripping DBs or grabbing the chinup bar, and can tell its no bueno. I did not rest totally, kept doing bench, incline DB, push press, overhead press, pushups all light just to keep movement going upper body. And I figure out ways to load my legs without being able to pull.
So I am not stopping exercise, but not doing anything I have to pull or loaded grip. Past few weeks once a week I have gotten ART on that arm. I went to an ortho just to be sure and X-rays show nothing, and his eval showed all ligaments and tendons intact around elbow and bicep. He wants me to take off 3 weeks and is hopeful it will slowly get better, if not MRI and discuss PRP. Said it could be tennis elbow with possible microtrauma to bicep and tendon and just needs rest. He bent my elbow in every which way and put tension on it from every angle with no pain, and I can flex the bicep without pain.
Its just random pain but I can tell if I were to load up any DL, cleans, snatches, chins, DB rows, it probably would not be wise and would aggravate it putting me right back where I was 3 weeks ago. I really do not have money for PRP right now so am hoping backing off gripping and pulling another 3 weeks calms this thing down.