Is it possible to get HIV from an untreated yeast infection or any untreated infection from sex?

Hello. For the past few weeks i’ve been having a curd like discharge coming from my vagina. I think it might be a yeast infection but i’m not sure. I would like to know how do i know if i have a yeast infection and yeast infection treatments.

I know i have a yeast infection from all the facts and everything, and i was wondering how can i cure it without going to the doctor and just doing it at home by myself

Its been 2 days since i started itching and got red down there and noticed a tiny bit of white discharge and a few curds, then earlier today I used equate miconazole 1 day treatment. i know its supposed to melt inside of me and drain down. but it just made me burn really bad and the itching has lessened once i used it but the burning started and i could feel it when i walked, its been almost 12 hours since ive inserted it and i noticed i have white discharge and curds like crazy now. I assume the vaginal insert should have melted through my system by now probably gone even hours ago but my yeast infection looks worse or is the insert just help to flush out the yeast infection faster by making it flow more? or am i just having a reaction to the treatment