Rest as much as possible today & take plenty pain relief with you. How long have you been on antibiotics? Fingers crossed they'll kick in soon. Try to have a rest at centerparcs each day & if you can't make it out, get your other half to look after the kids.
I'm so sorry twinklz, I'm getting over a chest infection at the moment and I agree with a PP that you should go back to your GP, the antibiotics should have started working by now, and the fever/chills should have gone at least. You might need a longer course of antibiotics, or a different type.