I know it's hard, but you need to give yourself credit for getting up, getting dress and making it through a day. I know it's hard, and unfortunately doctors don't know much about this illness and what will work on us, so we become ginnea pigs till they find the right one. It does suck that they have to do this, a counselor I had said they are confused to about what to give, and that he was sorry, but it's a hit and miss treatment, I face the same thing with my headaches.
Being sleepy is just the illness making your body rest and trying to heal, so don't be so hard on yourself and give yourself time to heal.