No don't give up! It will get better, I promise. I know the TOTM feeling, I have it currently. Give yourself a bit of a pampering session, it takes your mind off food, and also cheers you up a bit. Otherwise, make a hot drink and snuggle up warm, it'll pass. If nothing else will do, and to avoid going completely off track, you could have another pack, or a small meal of chicken an veg?