I recently had a left thyroidectomy, after a week of being on medication i came off and then started to have tingling and pins and needles in the left side of my body only, not numbness some slight differences in color between my hands and feet but nothing drastic, always a regular pulse. I am heavyset because of insulin problems that I have, I produce too much insulin but my cells are insulin resistant and I just found this out recently. I am extremely healthy in my eating habits but I should excersize more than I do. I've also had chest pain back pain and neck pain, last night the chest and back pain got so bad i couldn't sleep. The first time it happened I went to the ER and they did a chest xray EKG and bloodwork and it all came back clear. I have a major fear of heart attacks and despite what the doctors said at the hospital I can't help but think that there is something wrong with my heart. I only feel good for part of the day and then for a few hours I have pins and needles pain and discomfort. can someone please tell me what is wrong with me?