Hi doctor. My baby is now 4 months old. The baby is breastfed almost exclusively because at the time of birth, he did not have milk, so he used formula milk for half a month. After I had enough milk, I did not give it to my baby anymore. Since birth, the baby has squishy stools 3 to 4 times a day, 5 times a day, mucus is sometimes foamy. The first 2 months of the baby gaining weight steadily and more than 1 month now, the baby has not gained weight anymore. So let me ask if my baby has to go outside and when to take him to a nutritionist. Since I was born, I have added biogaia probiotics, when I turned 3 months, I did not give it to my baby anymore. But the baby still goes out like that. Currently, he goes 3 times a day, morning, noon and afternoon. I wish the doctor for advice. I thank you!