Yes. OurPath recommends getting a full STI panel, even if your partner maintains they have been faithful.  Many LGBT+ Partners begin to become comfortable with their true sexual orientation in the context of a same-sex relationship, which then leads to discovery by or disclosure to their Straight Partner. If you do have an STI, medical treatment is essential to your health. If you don’t have an STI, being confident in your own health is one less concern at a challenging time. For Straight Partners in the United States, the Centers for Disease Control and Prevention has a website to help you locate a testing site in your zip code.