My DD has recently gone off her milk. She has got a tooth coming through which didn't effect her feeds with other teeth. She has 3 meals a day and is getting plenty of food but I'm worried about her fluid intake. She used to be on around 800ml a day but for the last few days has only managed 300ml. She's struggling to go to sleep aswell. Could it just be her teeth? What is the least amount of liquid she can drink without me having to worry?? Anyone had the same problem?