My son used to roll his eyes back ... while walking, standing, watching TV ... we were getting worried. That stopped almost immediately when we went on Lupron DMSA. He'd do it 10-20 times a day ... No idea why, and no idea why it stopped. We didn't want to do the EEG MRI cos the anesthetic had mercury in it. So we said we'll watch it and see ... and it promptly disappeared.Day dreaming can be missed as petimal epilepsy. Day dreaming the person has awareness the other the person is some ware else like. My wife had it as a kid. You take antiseizure meds. Most of the time it quits at adulthood. Hope this helps.