Something very similar happened to me about a week ago. I was at a friends ordering jimmy johns and apparently (I dont remeber anything) I dropped the phone, fell out of my chair and starting convulsing with my back totally arched all exorcist style, and I was bleeding from my mouth because I bit my tongue so hard. My friend called 911 and the next thing I remember is a bunch of paramedics standing over me. I'm having an EEG on friday, this was the first seizure ive ever had. My friend said it might have scarred him for life he was scared shitless and though he was watching me die.