This referred pain referred pain!
The left arm, we offer a referred left arm pain on many with this. The only way to get rid of the referred pain is to treat its source. The spinal cord is like a tree trunk, and the spinal nerves are like the tree branches. It is, of course, well established that an osteophyte compressing a nerve root may extend medially and compress the spinal cord as well. When holding a push up, leaning on the arm, or hanging, it is especially active.