Hey Jen. I really think you should discuss this with your doctor (or if you have, get a second opinion). The feelings you're having could be auras or different types of seizures meaning the medication isn't working, or you could be having negative side effects. There's many options, but after 3 weeks you should feel a bit more comfortable, not worse.

I really suggest you discuss this with your doctor as soon as possible. Have they tried any AED's on you (sorry if I forgot), like Trileptal, Keppra, etc.?