hello doctor my baby is 3.5 months old and he is on exclusive breastfeed only on the his weight is 6.3 and from pass 3 days he is having vomit constantly after every breastfeed he is vomiting and his vomit is like a curd and I am feeding him on demand and but he demands after everyone and half to 2 hours and from pass 3 days his sleep pattern is also disturb in night he is demanding feed after every 2 hours please suggest.