Hi I am 2.5 weeks post hemithroidectomy for a large benign multi nodular goiter. I had been sick (with a virus?) previous to this and my TSH-0.26 and FT-13.2. No FT3 and my Vit D was very low, Iron good. 7 days after surgery I started to get intense adrenaline surges throughout my body and what feels like panic attacks. It feels like the world is ending and is frightening to experience. It is worse between 2-5am and can last a whole day. I don't have any history of anxiety or panic attacks. I have had my blood checked again TSH 1.78 T4 13.2 and no F3. My endo said that I just need to "ride through it" until my body readjusts itself. Yesterday I felt so sick with these surges that I went to hospital and again nothing but a suggestion to get my cortisol checked and a prescription for Diazepam!? Has anyone else had this experience post op and any suggestions for getting better.