My mum was holding my 13 week old and I sort of heard her breath loudly. My mum jokingly said "did you know your daughter snores?". It was like Darth Vader breathing.
Looked over and her face was(nose and mouth covered) buried into my mums shoulder. Now terrified of C02 rebreathing or some other un-thought-of damage.
Obviously moved her head and she is now breathing normally
Please talk me down