That they can't enjoy Christmas?
I was trying to help DH prepare the food but the smell and look of meat is making me wretch. Couldn't manage my breakfast, have since been eating malteasers as I can't stomach anything else. Also think I'm coming down with something, sore head, throat and cough. Moan moan moan 
On the other hand it will all be worth it because even though DH has to do all the cooking, I'm 'cooking' the most important thing 