Totally understand and been there too!!! When the darkness descends, I want to stay in bed and do nothing or think of nothing.
I know that's when I should be getting out and exercising or something, but sometimes it feels that a huge magnet is keeping me in bed and it's almost impossible to get up.
And then, one day, it just seems to lift a bit.
So unpredictable and so ruthless....
{{{{{Twisted_Soul}}}}}