Vaginal odor- HELP!!

Recently, I’ve noticed a very strong BO-type odor ~down there~ and it’s been messing with my confidence and my sex life. I’m not sure exactly how to describe the smell, but I began to notice it around a month ago. I’ve done some research and it seems like the smell could be one of two things: 1) my pH could be off, or 2) I need to change my diet. I haven’t done anything recently that could throw off my pH so I’m assuming it’s an issue with my diet. I try to stay away from bad fats, dairy, and excess carbs. Basically, I’m wondering if anyone has had this problem and knows how to fix it.