Hi, I had gone through your question and understand your concerns, answers to your queries are, 1. No , it is not normal for 1.5 month baby to have jaundice . What is total serum bilirubin, direct and indirect component , other liver function tests, colour of stool, other tests like G6PD, Thyroid profil ? If every other thing is normal sometimes Breast Milk Jaundice can persist for longer duration of up to 2 months but it is not common , it is very uncommon and also assumed diagnosis if every other thing is normal . 2.No , it is not recommended for baby to drink cooked water.( breast feeding only) 3.Baby can have stool about 10 times per day, provided baby is active , gaining proper weight , passing urine every 4- 6 hourly , on the other hand baby can pass stool in 2- 3 days , it is normal if not hard . Hope this answers your question. If you have additional questions then please do not hesitate in writing to us. Wishing your baby good health. •     DISCLAIMER: - All the information provided here is for information purpose only , it is not a substitute for the advice of a physician after physical examination , it is not intended to replace your relationship with your doctor. This information in no way establishes a doctor-patient relationship. Before acting anything based on this information do consult your doctor. I recommend that online users seek the advice of a physician who can perform an in-person physical examination