Third year, I was smelling those same moldy odors and I kept thinking it was my feet. You can see from my previous posts from months ago I mentioned foot odor But since I tried everything imaginable for external odors I realized my feet were not the source. I guess that fungal or whatever type of infection I had made me smell that type of odor even thou it's actually in the nose or possibly throat.
I went to see a dentist months back and got my wisdom tooths removed thinking that could be the source of the odor but nope. The dentist gave me painkillers forgot the name. I still had some left over so I used them that night.