So, my 15 month old woke up Tuesday morning and had thrown up during the night sometime. Seemed fine and happy in the morning so I chalked it up to eating something weird and sent him to daycare. Wednesday I pick him up and only one wet diaper. Today I picked him up and they told me only one wet again. It's now 730 and he still hasn't wet his diaper.

He should be drinking plenty during the day at school. Just at dinner he had enough where I would have thought he'd wet his diaper.

Any advice? Would you be worried?