Weird perception of time?

I myself was not diagnosed with ADHD. But my older brother was diagnosed with ADD when he was 15 so it does run in the family. Maybe that is it? I also get really weird Deja Vu spells that only come about when I am anxious. They aren’t debilitating but they are scary because my brain perceives them as seizures. I have never had a seizure in my life but whenever it happens my anxiety kicks in and tells me I’m having a seizure. My therapist and many friends have also told me my Deja Vu is just my anxiety but I don’t know. It’s not that I don’t believe them it’s the fact that my anxiety overides the rational thinking and makes everything irrational.