I get yeast infections. I don't get them often but when I do, they are horrible. Me and my boyfriend had sex yesterday and he used a condom for the first time since we have been together. (Why, I don't really know). During sex, it really started to hurt with the condom on. After wards its hurt ever since. I woke up and now I feel like I have a yeast infection or something. It itches and burns really bad. How do I know the difference between if I have a yeast infection or if I am allergic to the condom we used?