Why Do I Choke During The Day 13 Day Old Baby - Foams Saliva At Mouth During Sleep?

13 day old baby - foams saliva at mouth during sleep? - why do i choke during the day

My baby started choking and coughing or possetting breastfeeding. She slept with saliva / milk foam at the mouth and ends up being dry when you wake up. Is this normal or should I worry?

Another thing, she just started sleeping for 1 session x 4 hours during the day. He woke up back) with just 21 minutes and then feed into bed (with the diaper changes between forage. I hopethis is normal? It is during the day instead of night