The female body has evolved unique characteristics not found in the male body. What you're encountering is the female body's specialised ability to generate organosulfur compounds. You see, the female body releases a mixture of (E)-2-butene-1-thiol, 3-methyl-1-butanethiol, and 2-phenylethanethiol compounds when it detects the presence of a predator. Known as stench compounds, the smell is one of the most important safety mechanisms the modern female body has. You are probably most familiar with this biological mechanism in the skunk.
So, what you're actually describing isn't bad vagina health, it is the female body's highly evolved defence mechanism that accurately identifies you as a predator. The fact that you are encountering it so often speaks to just how much of a dangerous predator you are. And it's working! The women stay single, free from your clutches. God bless the female body.