Left arm, leg back pain some tingling and neck pain, blood-work came back fine, mri of neck 1 yr ago fine, stressed ? at times tightness around arm

Or muscle aches : You describe a complex set of symptoms that are unlikely to be related. Often these symptoms can be to muscle fatigue or a virus. Make sure it you don't have a virus, then consider exercise therapy which includes stretching.

Nerve impingement: Of the neck is a very common problem, affecting about 10-12% percent of the adult population in the us. Nerve impingement can be caused by being sandwiched between two spinal bones, pressed by a bulging disc or encroached upon by bony overgrowth. Rec.: see an interventional pain management specialist for further investigation.