yeast infection or something else?

Kinsey
i've been having very abnormal discharge, and i think it might just be a yeast infection but i'm not sure. i have had one before about a year ago, and the discharge was chunky. but now, it is just really thick and creamy, and there is a lot of it. i've also been experiencing vagina pain as well, and the last yeast infection i had wasn't painful at all. what should i do?