My Daughter Done those EXACT things. Sweet one minute then total melt down the next. She would space out kind of like Daydreaming. Crying and Screaming spells that can last for hours. Especially if i put her in the car.Then eventually it was the really convulsing full out seizure. During one episode she fell and broke her elbow. We went back and forth to her Ped. but they hadnt seen her during these episodes so the just kinda played it down until I would bring her to the office during each episode. Finally we got in with a Great Neurologist. And It was seizures some not so severe. My Daughter was born with CP. So the seizures go along with it. If I were you I would absolutely try to get her in with a Neurologist just to be on the safe side. I hope this Helps. Keep us informed..!!!

Good Luck....