Oh boy! scary for sure! I know how you feel as I was with my nephew when he had his first and only seizure, his lasting 27 minutes. I understand that the emerg could not diagnose but i would have a very serious discussion with the parents and request that he follow up with physician to see if this could be further investigated. Since you are watching this child and his safety is in your hands for a great part of most days, I do think this is reasonable.

Not only did I have to go through this with my nephew (who is also in my care) but a similar situation with one of my kids suddenly developing weird tics were his head would start turning to the side and his eyes kinda rolling up! In both cases knowing that they were probably assessed helped a great deal in fealing like I had the knowledge to deal with the situation.

Every experience you live will make you stronger and take pride in the fact that you dealt with it the best way you knew how