this is also same as my boy ka, he drinks lot of water, fruits everyday and alll rice with vegtables, but still has hard poopoo, now, once i saw he has a little bit hard poopoo, will give him corn rice and "fire-dargon", keep 2 days, then poopoo will normal again, add oil ah mami
I dont know b4 of this ka, just learnt fm bk mamis here. but i think it is true coz when i keep giving apple to my son when he had hard poopoo, for 2-3 days, poopoo becomes very hard, so i change to other fruits instead. pear is a best choice.
reagarding 開奶茶,really not sure why yr bb will 嘔,i use to buy this fm yu-yan-sang coz i think the quality is better. as told fm my mum, she used to buy this fm a shop very many years, the man fm the shop said many of this is very 涼 & 削胃的, or u may try try 余仁生