Aw, totally normal yan sa age na yan, mommy! Around 1-2 months, ang saliva glands nila ay nagsisimulang mag-produce ng mas maraming laway, kaya parang laging basang-basa ang chin at may tendency mag-choke or cough, a few of us moms experienced the same thing din. The sticky quality ay normal rin, pero since LO is coughing and you're concerned, best pina-check ng pedia just to make sure walang milk aspiration or anything else going on, para magkaroon ka ng peace of mind talaga. In the meantime, keep a soft cloth handy para tuwing-tuwa lang ang drool, at make sure baby's head is elevated slightly during feeds at sleep para safer.