Vagina smells odd

So lately I’ve been taking probiotic dailies from activia and my vagina literally smells rotten whenever I do and when I miss a day or two it doesn’t smell at all, I’ve never had any issues with my vagina smelling so I’m confused as to why it smells like a literal dead rat! It’s embarrassing 😣

Btw no itching or burning sensation when I pee so I don’t think it’s an infection!