Overtired symptoms and conditions

I have always had and currently have the side of effect of extreme fatigue associated with the use of synthroid and now Armour thyroid replacement as well.
Whenever my tsh reaches normal levels I become increasingly fatigued. Now I an hardly stay out of the bed and yet my levels are normal.
I have Hashimoto's Disease and am menopausal with severe insomnia to cloud the issue. But the fatigue associated with thyroid replacement is longstanding and has occurred for about 15 yrs. For many years, I would stop taking the medication because of it. My doctors do not believe that the fatigue is related to Synthroid which I find utterly frustrating. Will be looking for another endocrinologist soon. Has anyone out there experienced this side effect of extreme fatigue?
Any input would be greatly appreciated.

I have a three year old son who has severe allergies. He's been taking singulair for 2 years on & off just in the allergy season. He started taking, singulair again in the beginning of April. One morning he woke up and both eyes were really swollen and red, I called his doctor's office and told them i thought he had pink eye, after 2 different drops and no change I brought him into the doctor's to see if it could be his allergies, and they agreed and started him on Zyrtec. I still was not impressed with the results so i brought him back yet again to see if we could see a specialist. Instead they put him on nasonex to try.
In the beginning of March I started to see a change in my usual happy fun loving son. He was scared to sleep in his bed, waking up in the middle of the night from bad dreams, uncontrollable screaming fits that would last up to an hour, saying he wants a Boo Boo. At first we thought it could be jealously over his new brother, or maybe something at his school.
Then i found this website and everything clicked, how scary it must be for a child to have these horrible thoughts and not be able to understand or stop them. What are the people at merck thinking??
Can any one tell me when the symptoms stop. He's been off for a week and we see some improvements. But he still has these fits with almost an OCD tendency to them (mainly when he's overtired), stomach pains, lack of appetite.