Mt baby gave me a scare

So this morning, my baby woke me up to her sneezing. When I turned to look at her, she was trying to catch her breath. I right away lifted her up carried her. But she was trying to catch her breath and has a lot of saliva. I was about to call 911 and do cpr. Then she started breathing. I collected my self. I lay her down to change her diaper and she does it again. Took like 3 seconds for her to breath. She Is ok now I feed her now she fell asleep but I'm paranoid to sleep My self..

Any moms had this happen? I am waiting for her pediatricians office to open so I can call.