Posted something similar in neurology. Essentially I am / was an epileptic with symptoms controlled for about a dozen years. Over the last say 18 months or symptoms similar to petit mal absences but not like I used to have, returned often connected with food - any! I will lose the thread of a conversation or what I was reading and take a minute or two to reboot. According to my journal they occur about 15 times per month, sometime in clusters usually during the day rather than night.
Despite upping the meds there has been no change, a brain scan and regular blood and BP tests reveal nothing. If anything they have increased with the 'dizziness / flush' becoming such that recently I have begun zoning out completely for a few mins and once or twice had to lie down. I am in otherwise fine condition, eat no meat and have reduced alcohol, spices and dairy to boringly virtuous levels - ie, barely any but still the minute or two 'flush' comes. Any ideas? The docs don't seem to...