Mine becomes horrible. I always use the suave deodarent spray and everything is always fine, but i find a use quite a bit during my fast...maybe it's just that our noses are me keen to smells, rather than smelling worse, im not sure, but i can always smell mine. I keep a small bottle of bath and body works spray in my purse haha.
My pee is also REALLY bad. I'm on day 10 and it still smells horrible. Blah.
sorry im not much help, just letting u know ur not alone haha