From Time To Time My Body Smells Like Rotting Flesh.

From time to time my body smells like rotting flesh. I can't figure out where it is comming from. I am over weight and sometimes in the folds of my skins I can get sores. I bath regularly and put deoderant in the folds. I have recently lost about 75 pounds and that has been when the smell seems to be the more prominant. My husband says sometimes after he goes in the bathroom when I have been there it smells rotten. Like rotten meat. Any ideas?