I am a 47 year old man and about 2 years ago I had undergone an angioplasty to remove a block in my left artery. Now since a month I am getting sharp stabs of pain on the left side of my neck from behind the left ear to the left shoulder muscles. I sometimes feel dizzy which lasts for a couple of minutes. I got checked by a physician and was given tablets like Taxim-AZ, Aceclo MR, Calpol 500 mg and Mac RD capsules for a period of three days. The pain had stopped but has returned after the course got over. I have free movement of neck and left arm but sharp piercing pain every now and then along with a dull throb on the left side at the base of the skull. What should I do?