Although the bedwetting may appear to be emotional S., it is probably more likely it is a metabolic shift. Day cares have the tendency to feed kids lots of empty carbs and filler foods because they are less expensive. This would change her blood sugar around the clock, making night time dryness more difficult.
Until the bladder sphincter is controlled by the brain, it is actually controlled by blood sugar levels. In small children (as well as the elderly in nursing homes) the bladder releases when blood sugar drops.
So keeping her blood sugar levels UP is the key to her sleeping through the night and having more awareness around needing to pee during the day.
Make sure your child is eating a high fat, high protein, low sugar diet throughout the day.
Give her a large high fat/low sugar snack before bed.
Water should be given liberally throughout the day and before bed also because DEHYDRATION RELEASES THE BLADDER as well (the brain thinks it is starving and blood sugar drops when dehydration sets in).
Good blood sugar regulating bedtime snacks include: Cheese with bread or crackers (or just cheese), peanut butter or nut butter with bread or crackers, bean and cheese burrito, fish ~ tuna on toast... what ever you child will eat that is high in fat/protein and low in sugar (make sure your peanut butter is not sweetened).
Water, water, water ~ the more water your child can drink the better... even right up until bed time.
You won't believe how well this works. Start today and she will be all over the bed-wetting and daytime accidents by next week.