Typist symptoms and conditions

50 y.o. female suffering from severe depression (or so I thought) since mid-teens. Finally sought professional help 8 mos. ago - diagnosed w/ bipolar disorder/depression/anxiety. Lamictal (now up to 300mg/day) has literally been a life-saver for me. I feel calm, rarely depressed, a bit more patient w/ myself and others, and the suicidal thoughts I've had for 30+ years are gone. I feel happy. The side effects, however, are disturbing. W/ the higher dose, I feel emotionally well but the memory problems are scaring me. When I write, I know which words I should use, but now I frequently omit or misspell words - not a problem before. I've always been a fast, accurate typist but I feel clumsy when typing and frequently hit the wrong keys. I misplace things and since I'm a bit OCD about losing paperwork, etc., it's happening. My job requires me to handle important financial docs. for people and I'm worried that I'll miss or lose something. Some days I can be very articulate w/ great use of vocabulary and other days I feel lucky to put a string of words together that will make sense. I'll lose a thought in mid-sentence. My doctor recommended that I take 1 mg of folic acid per day; it seems to help the memory issues and I may increase that amount. I grind my teeth at night so badly that I'm wearing a night guard to avoid ruining my molars. I find myself frequently rubbing parts of my hands together - especially when my hands aren't otherwise occupied. My dreams are vivid and I recall most of them, which is a pleasant side effect because I went many years without remembering my dreams (maybe due to alcohol abuse?). Another unpleasant side effect is clumsiness. I'll reach for something and miss it or jam my hand into a solid object, I drop things, I hurt myself more often - stubbing toes, smashing fingers, and cutting my hands more often in the kitchen. My doctor has put me on two different anxiety meds but the side effects were not acceptable so I stopped them. I'm considering lowering the Lamictal dosage to see if the memory issues improve; I can deal o.k. w/ the other side effects. I can't imagine not taking this drug, so I'll most likely endure the side effects for as long as possible.