Do i have a yeast infection?

The discharge is as pictured. It’s white and coming out in small clumps. It looks like mucus... but I’m almost wondering if it’s skin. Could I just be so raw from having an excessive amount of sex (10 ish times in 3 days) and peeling inside? We used condoms, but I’ve never had problems with them before. I don’t think I’m allergic to the latex?

I’m also quite itchy on the outside of my vagina. It doesn’t smell completely normal but not fishy or anything.

I went ahead and got some miconazole. Will that be harmful if I use it and I don’t have a yeast infection?