Hay, nakaka-stress talaga pag biglang ayaw ng baby sa formula niya, totoo? Both NAN Infinipro HW at Similac Tummycare HW are good options, pero honestly depende sa baby mo, some babies' tummies just do better sa isa kaysa sa iba, and since Similac Tummycare is specifically formulated para sa sensitive digestion, marami sa amin nag-try na yan pag may digestive issues ang bata at nakita namin improvement. I'd suggest trying Tummycare, pero if baby mo has constipation, gas, or other tummy concerns pang hindi nag-improve, best to check with your pedia para ma-guide ka ng maayos sa best formula for your little one. Good luck, mama!