Ay mama, kung parang nabubulungan siya habang nag-feed, please take baby to the doctor or nearest clinic agad, hindi dapat i-ignore yan lalo na may ubo pa. Could be something simple lang, pero mas better na i-check ng doctor para peace of mind mo. A few of us mums have had similar worries, at ang best move talaga ay direct consultation, especially with a baby pa lang. Ingat sa feeding position din habang naghihintay, try keeping baby upright a bit more. Let us know how baby goes!