There are many different bacteria that have the same survival strategy as Candida, and they live as colonies. Each colony releases it's own type of smell, so you get different combinations of smells.
People actually react to each other's smells subconsciously, it is part of a person's inbuilt immune system response.
The smells from your armpits are different than from the genitals because the bacterial colonies are different in each area, as well. Generally what you smell at your armpits it's what is in the lymphatic system.
The theory that Dr Robert Morse has about the lymphatic system is that usually there is some bacteria that live in the lymphatic system that help neutralize the acidic byproducts of cellular metabolism. He has lectures on YouTube where he explains how the lymphatic system can get backed up and bacterial activity can get out of hand, resulting in health problems (fx, bad smells.)
You can try searching YouTube for ''the great lymphatic system'' to learn more and hear his recommendations on how to handle the situation.