You sound exactly like me, I'm on month number 4 of a total breakdown/depressive/hermiting phase, and I totally let things go in my house too. I had an inspection recently and my house is already disgusting, the kitchen, bedroom and bathroom are the worst. I totally cleaned my kitchen a few months ago, roof to floor, cupboards, fridge, everything. Then I got into this total cleaning phase and decided to spring clean and get rid of all this junk I've been keeping for years. Well I got halfway through and just couldn't do it anymore, I've lost the motivation again, and now I have a carport full of garbage bags and old stuff.
But don't you just feel awesome while it lasts?