I have not received help for continuous abnormal vaginal bleeding, waiting on labs, and unable to complete sonohg b/c narrow cervix. any advice?

See a gynecologist. : There can be multiple reasons but in a young woman this is usually easy to treat. Need to be sure there is no pregnancy, bleeding disorder or uterine abnormality. Sono can be done through the abdomen if vaginal is not possible. If images still aren't adequate, other diagnostic tests are available.

Follow advice: Your gynecologist can guide you through the process to determine the cause and treatment for abnormal uterine bleeding. Don't be satisfied until you have answers and the problem is resolved.

Abnormal bleeding: At your age the most likely cause of bleeding, once pregnancy has been excluded is what is called dysfunctional uterine bleeding (dub) from non-ovulation. The labs are to check fort pcos (polycystic ovary syndrome), thyroid abnormalities, blood clotting abnormalities. It is rarely an anatomical problem like a polyp, so i wouldn't do a sonohg, but would try birth control pills or progesterone.