Hi everyone I need some advice and this is long SOrry

I have been doing allot of research since my doctor put me on Synthroid. But i am a little worried.. Heres the deal. I am currently on medication for anxiety, deppression and sleepiness. My what I like to call it my mental doctor

anyway he put me on a drug for sleepiness and said that if it did not do any good he suggested a T3 medication. I said I would try this other stuff first. So that got me thinking about my thyroid. So I made an appointment with my other doctor and had my thyroid tested. He then placed me on synthroid. Well my concern is that now that I have started this synthroid I seem to be more tired then I was before, and the medication my therapist gave me to help me stay away is not working anymore. I am sooo confused. I am suppose to go see my doctor who did the thyroid test in a month but I see my therapist in a week. I don't know if I should contact my doctor who prescribed me the synthroid and tell him about my sleepiness. I can barley stay awake after noon. I know this is confusing but i could use some advice.