Yep this is me too. Half of the time. I could easily while away the day sitting in the same place telling myself that I must get up in a minute and do blah. I tell myself it again 10 mins later. I get days like this. I have to push ad push myself to do it. I say ` just do it' it will be over and then you can go back to staring out the window. It works. Most of these days I genuinely have no care or interest in doing a chore, its all done with gritted teeth and only done properly because I always believe in the mantra if you are gonna do something do it well. I feel damn guilty and ashamed when I see and know that other people bike 10 miles to work and work for 50 yrs and so on but I cant help being mentally tired and low.