Paranoid

So, i get a lot of creamy discharge, when it dries up a bit it smells a bit like mushrooms but more acidy. Im not experiencing any itching or burning and i havent had sex in AGES so its probably not an STI. Is it normal or should i get it checked out?

Edit: how would the doctor check it out? Would i have to be examined or take a swab myself and then give it back to her ?