Years ago I was put on Keppra 2000. It made me very tired, but no seizures. I jacked it up to 3000 (against his knowledge) & I was good to go. No longer tired. It's the level & adjustment from the other drugs. The lamictal I was put on this summer I hate. But then I am on way too many drugs (currently 4) to figure out which one is screwing "what" up.
All you can do is have your questions ready & wait it out. I've been dealing w/ bad vision in A.M. for hours, tired, & memory shot since all these drugs were thrown in the pot. I'll trade you!