Ay anak, yan talaga siguro digestive issue or maybe food sensitivity ka sa suka, a few of us moms noticed na ang anak namin ganyan din, sobrang sensitive sa acidic foods kaya nag-avoid na kami ng vinegar for a while. I'd suggest check with your pedia or doctor para sure kung ano talaga ang trigger, kasi baka may underlying condition na need i-address, pero in the meantime try mo kung may pattern siya, like kung ano ang ginain mo kaagad bago sumakit so you can avoid muna. Sending you comfort, mommy!