I've been taking Lamictal and Topamax together for complex partial seizures for many years and lately Tegretol was added. I have experienced severe dizzy spells and rolling nystagmus and nausea periodically for at least 5 years or more. My GP thought it was my ears. River Cities ENT performed every test they had to offer and said it has nothing to do with my ears. With this dizziness, I cannot walk, I slur my speech, and cannot even hold a pencil. After two or three hours, it passes. MRI/MRA is clear. Has anyone else experienced dizziness similar to this?