New sx

Patient: Question, I am 25 years old and have experienced rare sx. I am taking Nucynyta for pain lumbar ppain to my back.I have been on it for a year now and only recently have had sx. Dr. Tells me is panic attacks.Sx are Left shoulder tightness and pain goes down my left arm, numbness and tingleing in fingers, and rapid heart rate and dixxy.Can you tell me what this could be.