Advice?

Destiny

So I have yellow discharge and it just showed up this morning, I didn’t think anything of it bc I had no other symptoms. No itching, nothing. Well now a smell has occurred and so I decided to go online and do the little test thingy on monistat and it says I could have trich but I’ve been having sex with the same person for a couple months now. I’m not sure how or why I could have it. I’m going to get a doctors appointment to see what’s going on but I just got tested last month and I was clear so I’m a little confused on what’s to be said when making the appointment and how to address it with my current partner. Any tips or advice? Maybe someone has had the same symptoms and can help?