my daughter did this last year with full day k and now with 1st grade.
She'll have a bunch of days like this together and then a few days of not eating much and sleeping more like someone else said and then have a growth spurt. I cant notice in tallness because i see her every day but her little belly shrinks afterwards so i assume because it spreads out.
I think the full day school does this. they are used tp snacking on healthy things throughout the day and even the snack they give is the reccomended snack size. its about 5 little mini gold fishes. i dont know about you but i apparently give way more then the reccomended size.
totally normal. i ussually let her eat healthy snacks within reason. as in right before bed if she wants her 5th watermellon..nope because i picture M. cleaning up throw up but anything within the right time before bed i let her have
ETA I spoke to her doctor about this and the doctor said to encourage snacking before dinner and having a smaller dinner so she doesnt get used to eating those portion sizes and get bad eating habits. so now when she gets home from school she gets a snack and then it curbs her appetite a little at and after dinner