E.R.
You won't lose your milk in 24 hours. Even if pumping is not productive for you, you can still do it to stimulate your nipples and keep milk production going. That's what I would do, for sure.
SHe could grow out of the strawberry allergy, too. It's best to withhold berries until they are like 18 months old, anyway.
Don't stress about it, if you stress, you will suppress your milk supply. Just pump every couple of hours today, or whenever you would have nursed.
Wanted to ask you, what makes you think your milk is running low? Just curious. You will make as much as you use, as long as you are nursing.