odd discharge smell?

So recently I've been getting an odd smell from my vaginal discharge, it's kind of a garlic smell. I don't eat garlic or onions so I've read that it could be BV. Has anyone else had this problem?
It also seems like sometimes when I'm at home and not wearing a bra that the sweat under my breasts will have a similar smell. I can't think of anything that I've changed in my hygiene routine. I plan on going to the gyno asap, just wondered if anyone had anything similar? Is it something with my pH?