i have grandmal seizures. my epilepsy started when i was 9yrs old. i do get deja vu just before i have a seizure. i have had deja vu for as long as i can rember but the last couple years its gotten stronger and feels more real. now if i get deja vu i know its a warning sign a seizure is comming. i get the tengling feeling something like cold chills under my scalp. sometimes i get so sick to my stomach it feels so real. i just wanted to share my symptoms as someone with epilepsy. i use to have all my seizures while i was sleeping , now i have them while im awake. have you ever woke up sore and so tired you just cant hardley move? deja vu is just 1 of my warning signs. im not saying you have epilepsy ,just my experance.
I have similar "deja vu" symptoms feeling sometimes, mine are related to migraines, but from what I understand it is somehow seizure related also. For me a key also is not so much searching for a cure as it is in preventing & avoiding things that trigger, set-off or contribute to the conditions. A condition that promotes migraine and/or deja vu for me is an ongoing lack of sleep followed by more than enough sleep. Within a day or two I will have a migraine or deja vu or both.
For me, some foods set up a deja vu episode too. Nuts, like Hazel or Macadamias are a sure thing, not sure why.
Another odd thing that Doctors don't like because they don't "get it" is perfumes. I have severe perfume sensitivities that aggravates my asthma/COPD/pulmonary hypertension. I first experienced this when I was fourteen and trapped in the car on a family vacation. My stepmother had a new perfume, Nina Ricci. It was an * hour drive to Peoria, IL & 8 hours back. It was the 1970’s & I thought maybe it was LSD. I had no clue of what it was until a few years ago, at age 49.
Besides avoiding triggers I have found that plain old dietary Magnesium supplements help me avoid these odd Deja Vu things as long as I follow my other self imposed guidelines. My Deja vu’s start with an amplified shiver starting in the mid abdomen that moves up rapidly. There is fear and euphoria and other emotions or feelings too all mixed together. Next a bit of dread or doom, then the Deja Vu feeling begins. At first it is almost humorous, kind of. Then full Deja Vu for about forty seconds. Lastly is the odd Migraine hangover and things don't "look" right for a while.
It sounds like anxiety related depersonalization. Depersonalization tends to be related to PTSD or a really bad event from your past being triggered by something in your surroundings.
It's a horrible and disturbing feeling. When it happens take deep breaths and try to think about something like how your feet feel on the ground inside your shoes, how your shirt feels against your arms or something like that. It will distract you and calm you faster.