Well, here goes. Every morning, I notice that I, uh, stink. Between 0400 and 0600. It's not that I'm especially hot or working hard or sweating. I just notice an odor about myself. Nobody has ever said anything. And it seems to be gone on its own within an hour or so.
My guess is that this is the time that our bodies are maximally preparing for the new day. I know there's a diurnal upswing in hormones about that time, right? And I attribute it to that. That's also when i notice that every coworker and I are needing to do our business in the restroom. Our bodies seem to be cleansing and gearing up for the day, even though we are night workers, most of us for many years.
What the heck? OK, well, that was embarrassing, but I woud appreciate your input. It's odd, but I don't notice other people being smelly, just myself. I wonder if they notice me or themselves or not at all. Too embarrassed to ask. Not asking for med advice, just for your experience with either yourself or coworkers. Oh, and what do you do about it? Jump in the shower? No, of course you can't while working.
Between 0400 and 0600. It's not that I'm especially hot or working hard or sweating. I just notice an odor about myself. Nobody has ever said anything. And it seems to be gone on its own within an hour or so.
Oh, and what do you do about it? Jump in the shower? 
No, of course you can't while working.