Hiya
Glad you have the diagnosis. You are over the worst part. I am a uk airline pilot and went through the same thing last year. Couldn't sleep, boiling hot and feeling seriously weird. Persevered for as long as I could but eventually went to a doc and was diagnosed as you were. The carbimazole (40mg to start with) started to work very quickly but the CAA wanted 3 months of being euthyroid before I got my class 1 back. I am on 5mg now and will soon be reduced to nil. Hopefully all will remain ok but the science isn't exact! Enjoy the break from work