I Have Been Having These Deja Vu Moments, Even Though

I have been having these deja vu moments, even though I've never had the memory. And I have a very good memory. The first time I had this deja vu moment, was yesterday. My mother said something to me that i was unusually familiar with, but I had no memory of it. The second time was today when I was having an argument with my grandmother about giving my brother medicine for his fever. I felt a sudden familiarization with the conversation, and I asked my aunt, who was in the room, if she remember the conversation. She looked at me with no clue. I decided to look up these symptoms, and I found the word deja vu, but I am convinced that I have no memory of these "situations." I found out that these symptoms are common in epileptic seizures. And this made me think back to when I was 12, I was riding my cousins bike, when I started to feel light headed. I had just hurt my toe trying to stop the speed at which I was going. After the light headed feeling, I felt like I was going to fall. I raised my arms, covered my head, and then I blacked out. I have no memory of me falling to the ground. When I woke up, my head was facing sideways, watching people running towards me. It took me a minute to feel the pain in my fingers and toes. I need the answer if I am prone to epileptic seizures, or if I am literally going insane. Please help.