(( patty )) Merry Christmas and I'm sorry you're sick on Christmas!

I think since you don't know that you will get worse, you could choose what to do without that being a factor. A nice leisurely drive with good music, maybe staying not as long as you might if you were feeling 100%, a nice drive home and lots of good healthy food and plenty of water, getting plenty of rest when you get home... sounds like it might be a way to do it and have a wonderful time.