Baby making choking noises

olivia

My 7 weeks old was asleep then started coughing, then choking. I about had a heart attack. She just spit out some drool and now she's asleep again. I'm terrified to lay her back down I don't want her to choke while I'm asleep. I don't think I can sleep at all now. I'm over here on google looking at symptoms and thinking the worst.