My DS has suddenly stopped drinking water. He used to love water until 2 weeks ago. He is now very very constipated. I tried different cups and bottles. Tried mixing in some juice. Spits it out. What else can I do? He does drink oat milk so I've been giving him extra cups of milk to help but he won't have more than 1 or 2 cups. I'm still breastfeeding 5-6 times a day but it's not enough. His poos are pebbly and very very hard and he's struggling. His tummy is sort of swollen too.
Rewards/stickers don't work, he's too young to make that connection i think.
He has blueberries at breakfast, a ripe banana and an apple every day too. Always has broccoli with dinner. Lunch and dinner are homemade, normal food (chicken and potatoes, tuna pasta etc). Allergic to dairy and eggs.