Question to all seizure patients

Ok something happened to me today at work. The strangest thing. I've mentioned many times that I'm on the new med Topamax so am not sure if this is the cause for it or not. So, here goes...I was sitting at the table giving my student his exam when suddenly I felt this sort of feeling as if "I'm there, but not there" kind of feeling. Does anyone know what I mean by that? It's like everything is going in slow motion like a movie or something. I got this funny feeling in my stomache. Then, sometime later everything is back to normal again and I start to wonder what just happened. I felt so lost and confused. I couldn't remember what it was I was doing again. Had a hard time focusing. And I had this cold tingly numbness feeling shooting from my hands to my elbows. I was also feeling so "floaty". Is that even a word? Needless to say, my co-worker took over for me 'coz I told her that I'm not feeling well suddenly. Needed to rest for a bit. She knows what that means. I don't think my student even realized anything was wrong, but I, myself, knows that something happened. It bugs the heck out of me 'coz I can't remember the missing minutes I lost out on. I hate not remembering. Don't u? Has anyone experienced this before? I'd like to know.