Ay anak, normal lang yan sa 3-month-olds, marami sa amin napansin na bigla-biglang bumaba ang intake or magbago ang poop consistency, lalo na kung may slight digestive changes, pero since mix-fed siya, mas maraming variables na pwedeng mag-affect. The poop color and consistency changes are pretty common sa ganitong edad, pero since humina siya significantly and nagbago ang pattern, better to check with your pedia para sure walang underlying issue like allergy or digestive concern, hindi rin masama i-monitor mo closely kung may ibang symptoms. A few of us moms noticed din na sometimes ang babies ay nag-adjust lang sa feeding pattern or may slight tummy upset, pero importante na malaman if it's just normal development or something to address. Keep an eye din sa wet diapers at if she seems comfortable overall, pero yeah, pedia visit would really put your mind at ease!