Basic self care does seem to go out the window when we're in the darkest depths of it.
I just remember Sweet Mary from when I was in patient ... Come on, honey, you gotta push yourself a little bit ... I repeat that to myself in the same gentle voice as hers whenever I feel so despondent I don't want to move.
I don't know how or why, but it works ... She must be one of those angels people talk about!