Yes, this is a key sign that I'm not doing well. I will start skipping showers.

It does make you feel betting to get into the shower. Once in there and getting clean, it's like returning you to "human" form. I have gone weeks without showering before. Once in particular I recall going a very long stretch about seven years ago. We moved to a new apartment and I took my first shower there in possibly a month and a half. I cried in the shower because it felt like I was human again. I'll never forget that one shower.