Anyone experience this

Kyra

Has anyone experienced this...my child the other night was trying to push poop out and complaining of her stomach hurting. She was crying. Then all of sudden she turned blue went unconscious and stopped breathing. We did cpr on her for probably about 30-1 minute and she came back. When we went to the hospital and even saw pediatrician the next day. They are telling us she just held her breathe and made her self pass out. Says toddlers do this. Has one ever seen or there child does this? This mom is scared and worried. Worse experience of mom is seeing your kid so lifeless.