What Are Symptoms Of Having Bacterial Vaginosis?

i test myself with vagisil screening kit. and it shows that i have a bacterial vaginosis or trichomoniasis. i looked up a signes but i do not have same sign of infection. only thing i have is itch, discharge that is between yellow and white and every time i used a yeast infection treatment it is going away for couple weeks and i getting it again. i am soo confuse now and i want to know what i have now?