A smell of faeces/feces with no obvious cause most likely.
Faecal/fecal body odour.
I would guess that it could be caused by a digestive problem which is allowing faeces smell from the bowel to enter the lymphatic system which releases it to the outside.
Probably due to leaky gut.
A mood disturbance and irritability indicates liver stress which goes along with leaky gut.
I doubt it has anything to do with Candida.
Posting or cross posting to Body Odor Cure Forum might help:
//www.curezone.org/forums/f.asp?f=326&p=700
Investigate changing your diet and paying attention to any changes because it might help to reduce it until you can sort out the cause.