Dear
Welcome to HCM
We understand your concerns
I went through your details.
Anxiety induced
syncope is a reality.
Fainting, also called syncope (pronounced SIN-ko-pee), is a sudden, brief
loss of consciousness and posture caused by decreased blood flow to the brain.
You may suffer from a simple fainting spell due to anxiety, fear, pain, intense emotional
stress, hunger, or use of alcohol or drugs. Most people who suffer from simple fainting have no underlying heart or neurological (nerve or brain) problem.
Simple fainting may not last for more than 10 minutes. In your case, the children were under that condition for around 30 minutes. In that case, I suggest you to consult a physician to investigate.
If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible.
Hope this answers your query. Further clarifications are welcome.
Good luck. Take care.