Pain left neck, shoulder, upper back.

I am getting left upper back,neck, shoulder,arm finger bones ,near underarm when I raise my hand, every day it's not so strong pain that i cannot bare but i get dull pain,after some times pain goes. My history I was diagnosed with Vitamin D deficiency i am taking uprise d3 once in a week for 8 week and also taking calcium tablet biod3 and also earlier I was getting neck pain I was not able turn that time I did cervical x-ray also Dr said no problem just common issue in working women with computers need to do neck exercise now neck pain is not there but left neck pains Due to the left side pain I did ECG and 2D echo also both are normal. What could be the reason for getting pain? Can any one please help me any cause for this?? And if any remidies.