Hello the other night I passed out and stopped breathing

Patient: Hello the other night I passed out and stopped breathing. My friend had to give me mouth to mouth and only after him doing this for a while did I wake up but after I did I kept feeling like I was just going to keep passing out again. I was taken to the hospital but there was no doctors on call to check and see what was wrong. The nurses just checked my vitals and gave me water to drink. I was wondering what this could be as I have passed out many times before but never stopped breathing.

Symptoms: Dizzy

Doctor: