I'm not a doctor of course but my wife had a similar thing happen to her at age 26 and she subsequently found out she had a mild case of epilepsy. A neurologist will perform a EEG to diagnose epilepsy and in most cases it can be treated with drugs, e.g. Dilantin. You might want to Google epilepsy and look what the Wikipedia has to say about it, i.e. until you get back your test results.