I can understand that hon, as for working tomorrow if you don't feel up to it, you are perfectly entitled to phone in sick, any doctor in the world would back you up that! Mc is hard both physically and especially emotionally and no one in their right mind can expect you to just magically be ok.
Make sure you do something nice this evening, whether it's nice food, a relaxing bath or your fav film, you need to be kind to yourself.
Xx