I get cold really easy and I have a hard time warming up afterward. Usually I have to eat something really hot or take a bath or something. The other night I woke up freezing so I grabbed some extra blankets. An hour passed and I was still freezing so I grabbed an electric blanket but I was still pretty cold. I my back was killing me so I thought maybe I had a fever but my temperature was high. I checked it and it was lower than usual instead. I experienced back pain, neck pain, ear pain, swollen lymph-nodes, and fatigue. I was wondering if I have a gland problem.

I've read that hypothyroidism might cause it and I'm underweight adn relatively short so I was wondering if I should see a doctor about it.