I have a cyst on my ovary and vaginosis which is not a std i have pain and no period for four months what should i do?

Go see a doctor: 1. Make sure you aren't pregnant! 2. Go see a doctor most likely you have polycystic ovarian syndrome, treatment is usually birth control pills/patch/ring or iud and/or metformin and/or weight loss if you are overweight. 3. Bacterial vaginosis is not a big deal unless you are pregnant and have a history of premature babies. Otherwise, it's just a nuisance. But can be treated but you need an rx.