tired all the time

my question is I am always tired and can't sleep sometimes so I stay up until 3:00am and then sleep till 12 or 1:00 in the afternoon. I get off balance and just tired. My doctor has changed my thryoid medicine to 50mcg of synthroid and 30mcg of armour thyroid. I am always tired and just no engery. I just get off balance and just want a answer to this. before my doctor changed my thryoid i was not like this. i think its the thyroid doing all this. i have only been on 50mcg for 3 weeks 4 days and armour for 2 weeks and 3 days. I have not had any problems for 18yrs and now 51 all this is happening to me. thank u

Tell your medical doctor what you just told me and ask him for advise. If you are not happy with his help, you might consider getting a second opinion from another doctor, preferably someone who is an expert on your kind of problems.