my baby is 3 months25 days old.from last 2 days she throw milk while burping.today she throws a large amount of milk,sometime small amount while burping,she cannot drink full milk some milk she left,she is crying while feeding.i give similac in bottle.she didn't take breast milk.can u advise me some med.can I give gripe water.if I give then please tell the amount of gripe water.