Open Question: Thrush, HIV, and stress?

Hi guys. I have some questions about oral and vaginal thrush and HIV, and stress. Recently, I had a sexual relationship with a person who gave me trichomoniasis. I went to the dotor when I started experiencing symptoms, and they gave me strong antibiotics called Flagyl to clear it up. I was supposed to take four pills of Flagyl in one single dose. I didn't understan my instructions, and I