First time happened just a few weeks ago. I thought I had hypothermia from the night since at that time I was at this cottage and the heating in my room wasn't working the first night. So I thought that my body just felt so cold that I couldn't heat myself up again. It took about a week for the feeling to go away. Now it's repeating itself. I'm used to being cold all the time. But this is different. I put loads of clothes on, my whole body is super warm but my back still feels cold. It's like the sensation if chills that won't go away. The skin is warm to touch though. Anyone else had this? Can it be connected to anxiety? I'm a 21 year old female with a lifelong history of anxiety. Also family history mainly on mother's side. Currently on tianeptine 2x12,5 (started taking it in august). 
Thanks for any kind of reaction.