hi, I am having 1 year 2 months old baby boy. I slowly reduced giving breast milk to one time before he sleeps on night. I also have started giving cow milk from the last two months around 150 ml, but he is not drinking even 150 ml. he just drank around 40 ml of cow milk and stopped drinking. I tried to give different timing, but no luck. he is only 8.5 kg. he is not gaining weight, worried about as he is not getting breast milk and drinking cow milk. What to do ?