Hi Lynnyloo,
it will get easier, I have 3 small boys under 7 that I have to cook for every day and not a taste has passed my lips since I began, I hand out sweets, crisps etc and no worries. Very sad sometimes as I love the smells of things (like most will say on here after a while) open cheese and onion crisps and I have a good sniff before handing them on, now they don't appeal to me as much as they did at the start. Cooking roast lamb is sill the thing I love the most, the smell as it is just coming out of the oven, but as I get to carving it I no longer desire it, strange but true. So it will get easier, just give it a week.
I would also suggest taking your last shake at the same time as they are having their dinner, you will be concentrating on that and not eating.
Hope all goes well.
Doirin