Mine's gone too. It disappeared on Friday (was so depressed that I washed the windows, so things were really bad) and I thought yesterday that it was starting to come back, but it's gone again today. Can't be bothered to settle to anything, even the waste of time fun things that usually cheer me up. The weather doesn't help, of course; every time I think of getting on with the weeding, the rain comes on again.
The fact that it's a 2 day on the 5:2 means that comfort eating is out, but that is really a good thing as I would regret it later (i.e. while standing on the scales tomorrow morning).
I send you all , and , which might help and won't do any of us any harm.