Can you smell just about every smell except your own BO? I can and it drives me nuts. It's the oddest thing. Maybe it's a blessing in disguise. It would be difficult to smell fecal odor 24/7.
Sometimes I'll smell myself for a second but not long enough to be able to pinpoint what it smells like. Most of the time, I rely on remarks made about me as I'm passing by people like, "What's that smell? It smells like butt. It smells like poo."