I had this problem, and I was out of it. I didn't realize it was adrenal shut down basically.
i went to a homeopath/ chiropractor for some help and he put me on Standard Process Drenamin, and Standard Process Symplex F. This literally changed my life. It is amazing. Amazing. Amazing. I can't even stress this enough to you. I would tell everyone about this. There are a lot of these type of doctors that carry Standard Process, and you can access this directly although the dosage is best determined by a practioner. Mine was 2 of each 3x a day. Standard Process is incredible.
This balanced me out so quickly and I actually was clear headed, and not tired and just myself again. I urge you to try it over any regular prescription of anything, and see someone who carries it. Seriously. It doesn't interfere with other medicine either, but they'll tell you.