Med reaction?

I think I may be having another med reaction. When I was having difficulty sleeping I went off my adrenal and thyroid meds til my sleep stabilized. I have since gone back on the thyroid meds and am having trouble staying asleep, and when I am awake I am a bit jittery. I will call my doctor today and discuss possibly lowering the dose or going off them completely. I am currently on 1/2 grain per day.