What Could Cause Pain In Neck And Shoulder Area?

I have had this pain since November I thought I slept on something funny. It has gotten slightly worse but never fully gone away. I have seen a chiropractor who wanted a MRI (it was denied by insurance) I have pains in my neck and shoulder area on left side that shot into back of my head. I occasionally get pins and needles in my pinky and ring finger on left hand and sometimes a headache around my left eye. I have done massage helps for a couple days and pain returns. Ibuprofen has not helped nor does Tylenol. Ice and heat have no effect for me. I am not sure who to turn to and if this warrants a trip to the ER