#AskTheExpert My son a 7 months. He has suddenly stopped having formulae milk, which he was happily consuming twice a day for past 6 months. Semi solid food has just been introduced which he enjoys. Only form of milk he enjoys is flavoured milk or milk shake mashed with fruits. Also has to be forced to drink water, and is passing hard stool. He’s also being fed with breast milk for the rest of the diet. Please advice. Thanks.