I used a round object to rub my vagina on the surface (no penetration) after which I started bleeding. I bled for 4 days. This happened 2 days before my period date. I haven't masturbated after that but started bleeding again after 23 days of the incident. Both times the bleeding was not heavy and only slight pain in my vaginal region. I am worried. Please help.

Were you able to pin point the source of bleeding? Have you brought this up with your doctor?