My 4 month old baby has started passing stool which smells like spoilt milk
This is happening since 5 days
She passes stool 3 times daily and on few occassions only 1 time
She also throwsup mouthful of water (not saliva) occassionally
She is on motherfeed and takes 1 bottle of 3 ounce BF1 from the 1st day
What can be the reason?