My 8 m/o is formula fed and has been having four 7oz bottles a day for a while. She’s eating reasonably well now so drinks slightly less, but today she’s flat out refused her morning bottle, crying and wriggling away whenever I tried to give it to her. She did since eat her porridge, but same thing with the milk when I offered before her nap. Is this a teething thing? It’s hot so I assumed she would be thirsty/hungry after 12 hours asleep and I’m a bit worried about her getting dehydrated.