your story sounds a lot like mine, and the first time i ever had a convulsive seizure i was told that i do have epilepsy, and i've been on medication since that day. i've also been having seizures since that day. now, about the auras... i had the same symptoms as you, and when i told my pcp about it, he said they were small panic attacks. i came to find that they were partial seizures or auras. they would hit me randomly, meaning i didn't have to be doing anything in particular. i could be watching tv, eating dinner, at work, taking a walk, at a party, sleeping in the middle of the night, etc... i would suddenly get the chills and the goosebumps, start sweating, get a strange salty taste in my mouth and smell in my nose, feel lightheaded, have a very strange feeling of deja vu, and get butterflies in my stomach along with terrible fear or feeling of uneasiness. it would last for a minute or so, and then i'd go on with whatever i was doing. when i have these auras now years later, it always means that a seizure is about to hit.
i don't mean to sound crass or scare you, but i would get another opinion personally. i would suggest trying to remember what you were doing, where you were, what the date and time were, and exactly how you felt and how long it lasted. write all of the information that you can remember down, and keep a journal of the same information, for each time it happens between now and when you see your doctor,(which probably should be a qualified neurologist). read up some more on the disease and look for any similarities in your symptoms, to people who have the disease. write all of those down and bring them to your doctor too. good luck.