Hi i have a question about herpes . I m 19 years old and i was diagnosed almost 2 months ago with mono, I was also diagnosed with a yeast infection about 1 month ago, and today I noticed 2 ulsers on my gums. I am currently sexually active, but use protection, with my boyfriend of 4 months. I wanted to know if any of these three things have something in common, such as herpes.