Aw, malambot na poop every after feed could be the meds talaga, mama! A few of us moms noticed na pag may gamot ang babies, ang digestive system nila gets affected kaya mas frequent ang bowel movements, it's usually normal and temporary, but since she was pooping every 3-5 days before, better check with your pedia kung ito ba talaga side effect ng gamot or kung may mild gastro na. Medyo common lang ito with cough & cold meds, lalo na if malambot pero hindi watery or greenish, but your doc can confirm best.