I don't understand what happened


could any one give me some information on a seizure I've had. It's the second time in my life that I've had a seizure but this one was very distressing. The first one I had when I was 19, now I'm 23. It happened when I got out of a swimming pool. I lost consciousness and had muscle spasms all over my body. When that was over I stared at the people around me and couldn't recognise anyone, even though they were friends of mine. You should know that I am bilingual. When I tried to talk I had forgotten all my Dutch and could only speak English, I could understand what was being said though. It seemed that I couldn't remember anything that had happened over the past year. I also had laughing fits and got angry because I didn't understand what was going on. This happened two days ago and I'm still feeling drowsy and upset. I would be very thankful if anyone could give me some information on what happened to me!