I was groggy and zombie-like when I first went on Lamictin. It went away on the higher levels but for me I did not find control of my BP symptoms, especially for the swings and irritability but for friends it has worked wonders! They too had grogginess and it passed as the dosage was increased. Keep an eye in your symptoms, as you're doing, to watch for signs of improvement; they tell me it was gradual though. Hang in there!