Please help! Baby is 7 months old EBF. He’s started purées and some BLW but he’s so constipated. Been to the doctors who prescribed lactulose but keep encouraging us to give him water which we have been. We’ve tried different styles of cup, colder water, boiled the cooled water etc but he just can’t seem to get the hang of drinking. He sucks it up then spits it out. But he does seem thirsty. We’re at a loss of what else to try and unless we can sort this I’m not sure the constipation will resolve. Any advice?