Jezuz Dave - I'm sorry! I have a seven year old & can only imagine the worry!
My wife suffered from seizures as a child & grew out of it. Same with my Cousin's baby girl - she's only four? but has not had a 'fit' in a few years.
I hope that it's nothing serious & that she too grow's out of it soon!
Stay strong for your family! You've got a great support network here - use it!