Idk what’s wrong with my vag?

I seem to always have problems (UTI, yeast infection, really big and painful pimples/ bumps around my genitals) and today I have more of the painful pimples along with longer lasting periods than normal and a stronger than normal metallic smell. Does anyone have any idea what could be wrong? I’ve been tested for gonorrhea and chlamydia twice but it’s come back negative both times.