Welcome comardelle, and first off please know you came to the right place.
Just breathe okay, there's many possibilities when it comes to an eeg, and a lot of times they're minor or they show nothing (very common even though you're having seizures). I've had 8 of them and the results are the same every time, roughly 95 per cent normal, with just one little blip.
I know, and sympathize with all my heart what you just experienced. An epilepsy diagnosis for most is one of the scariest. things. ever.
As a rule (but not always), the diagnosis is made after a second grand mal. Please know there is nothing wrong with you, it's just very unfortunate. Have they done an MRI? A lot of times that will help give answers more than anything, say if there's a lesion or some sort of damage from the past. Good to ask your parents or check history to find that out.
There are two things you can do at the beginning which will not only help doctors down the road, but also give you some feeling of control (very important with this condition).
1. Start keeping track every time you feel weird or anything new, and mark the date of every seizure. Doctors look for patterns and triggers and knowing these things can make a world of difference.
2. Research. If you have access to the net read up as much as you can. Be wary of which sites though, not all are reliable. Try WebMD, American Academy of Neurology, Epilepsy.com, Epilepsy.ca, EpilepsyFoundation.org, any university website that specializes in neurology, and of course, this site. It has a huge member base and Epilepsy sufferers/family members from all walks of life. If you need to know something there will be someone who can answer, and if we can't we try to help you figure it out.
The sooner you get to know what is happening and what E is all about, the less freaked out you will feel.
Please keep in touch and let us know how things are going, and remember this is open 24/7 if you need to vent, scream, laugh, cry... or pretty much anything. (((HUGS)))