Been having pain in left bicep and down to forearm on and off for a long while. i've had cardiograms, nuclear test, ekg, all done no problems?

Any neck problems: You may have cervical spine issues please have a check up If you ever had a MVA? spine issues need to be evaluated,This could be radicular pain or muscle pull

Meaning: These results indicate that your pain in the left arm is not related to a cardiac problem. Your Doctor should now look for other etiologies of arm pain, including but not limited to: muscle or tendon injury, joint disease, and neurological disease.