Fumble symptoms and conditions

Hi Everyone...I've been on a bipolar cocktail for 3 years and one ingredient is LAMICTAL along with Lithium and Wellbutrin. Overall the drug has worked and I feel pretty healthy mentally. Of course I am particularly concerned about my memory loss, putting a sentence together and finding the simple words for basic objects. I really do feel dumb, especially at work, as I am in sales. Many times I stutter, fumble and go blank in front of customers. I have not told my boss or anyone else that I'm on the meds, so I know they think I'm just a dumb-ass. I'm ok with that. I also quit going to school for my master's because of the short term memory loss and general mushiness of the brain. I was once an honor student and very outgoing, now I just keep my mouth shut when I can in fear of making a fool of myself. My balance is off and as weird as it sounds I have trouble parking my car straight in a parking space. My co-workers have commented a few times that I don't know how to drive. At first I thought it was my car, the tires, alignment, etc...but when I got another one, it's still happening no matter where I park. I'm 43 and have acne and underlying bumps on my face, chin and neck. I did lose weight though! So, I can empathize with most of you. I'm not thrilled with being on these drugs for what may be forever, so I guess I need to decide whether to stay on this stuff, reduce, taper or change drugs. LOL to all.