Hi Mary..
Wow been there done that actualy.. you should as yr pharmacist says sleep better.. I didn't notice any other effect except I slept in in till noon.. 1200 mg three times a day was the max they would raise me they said, but I switched up to lyrica (works on a lower doseage) before getting past 800 mg 3 times daily.

Pleasent dreams my friend please don't wory you'll be ok
sandra