Hi can anyone answer this?

In my old school when I was 14 we had a vaccination day. That day we got vaccinated from swine flu, so I got the shot like every other kid. I felt alright the first week, but then I started to have very weird seizures at first I thought I was just tired from all the late study but then the seizures got more frequent. During the seizure I would feel as if half frozen or numb, the thing was that my mom she never noticed that I'm having a seizure because my face every time seemed as going half asleep she would always think that I'm about to fall asleep every time it happened so she would send me to go to bed, while at school my friends would think that I'm on drugs or something. The seizures a couple years later were less frequent only one or two in a month. But that's when my real problem started. I could sit in class like every other person and my body would just shut down for five minutes sometimes just a couple of seconds and I wouldn't be able to recognize were I am for few seconds then my memory would reconnect back to normal. It still happens till this day I been to the doctor for different tests and every time he said that I'm perfectly ok. I am thinking of going to a different doctor and ask him to send me to get a brain scan and a couple more different tests to find out what kind of disorder or disease I might have. If you have an idea of what I might have I would be pleased to hear it from you.