I have been on Lamictal 200mg daily for quite some time. In the last year I have forgotten to take the medication. I have gone as long as 3 days without, and then, wow. what a change. My question is: I was running low, unable to get in to get another script. I went 3 days without, found some 150 mgs took those for a good week (waiting for appt). Notice some respiratory changes, and the feeling of a knot in my throat. I was able to get the script for 200 mgs. While getting them filled, I missed 3 days of the 150 mgs. Should I stop taking the lamictal and tell my doctor or should I start back with the 200 mg that I have now?