Need help identifying an std TMI

okay so i have been experiencing symptoms of an std for a few months. i have a doctors appointment this Friday but i want to have an idea of what i will be diagnosed with so i can better prepare myself for the news. it started off with (***TMI***) cloudy thick mucus discharge that was white. )as the weeks went by the discharge became even thicker like nothing i had seen before-never smelly and never any color but white)i thought it could be a yeast infection. the discharge only comes out when i am using the bathroom. my partner started to experience symptoms too. He thought it was gohnorreah because of the constant feeling of needing to pee/pain. The symptoms come and go but the discharge has stayed the same until a few days ago. (* I don’t have a normal period it’s irregular because I don’t weigh much**) so I had blood mixed in with the white discharge and I got scared and thought it was really serious like cervical cancer, but today the discharge is BROWN?! Like gravy... and I took a closer look at myself down there and I am so scared because it looks like I could have hpv or vestibular papillae but the discharge and feeling like I need to pee don’t really go along with the symptoms of those two stds... plus I don’t have warts but things are swollen and look like skin tags. If anyone could please help me narrow it down I would appreciate it because I’m freaking out. also the person i thought i got this disease or* whatever it is* from says he doesnt and his girlfriend both dont have any symptoms or issues. since i am experiencing symptoms and so is my boyfriend im just really confused

the pciture file didnt upload. maybe try google docs?