I went through this when I was 40, now 64, I got very sick on the Synthroid, my hubby threw them in the garage and said you will have to live with the sweats those thinks are going to kill you, so my MIL told me to take vitamin E and it should quite in 2 to 3 weeks, I did and never had another night sweat. It worked for me hope this helps you.
Have a Blessed night
Ellen