29/f had ekg a few weeks ago came back good. still having aching/shooting pain in wrist/hand/shoulder?

Nerve/muscle: The cause of your pain could be either muscular like a tendonitis of shoulder or a nerve entrapment like cubital tunnel or carpal tunnel syndrome of even a cervical spine problem.

Neuropathic pain.: Your symptoms merit a careful history and exam by your doctor. The focus should be on the upper limb itself as well as the cervical spine.