I'm sure it's just that you're completely worn out at the moment, that's why the running is such hard work. With all that decorating, cleaning, working, running, it's hardly surprising.
Looking back on my exercise diary, I realised that a week when I was finding the running really tough, including the one time I actually gave up on a run, was a week when I was worn out from other stuff.
Are you eating before your run? I know it's really early and you might not be able to face it, but even just a banana before you go out would help a lot with your energy levels.
Hope it all clicks back into place again soon, and good luck with the move
