you poor thing! i hope the antibiotics have you feeling better soon.
my advice:
stay hydrated
ask for help (can someone bring you a homecooked meal?)
try not to eat a lot of refined sugars (i'm thinking of thrush for you or baby)
set taking care of yourself and your babes as the #1 priority, you can catch up on housework etc when you're feeling better.
when my lo is sick and so am i, i try to put myself in her shoes and focus on how she's feeling. to avoid the "why are you doing this to me?" feeling that can be so natural when you're at wit's end, i narrate how we are feeling. ie: "you are so sad and frustrated because you are sick. you can't breathe and you aren't sleeping good, and that makes you cranky. mommy is sick, and i feel tired and cranky too. we will have to try to to patient with each other until we feel better. i hope we feel better soon." somehow getting it all out makes me feel better in the moment.
good luck, mama! hang in there 