ok. im quite startled and could use some help. ima healthy 18 yr old girl whos very active but i have bloody stringy discharge thats mixed with clear mucus when i wipe and its alot. and im not bleeding or anything besides those. its been going on for like a 12 hrs now. and my pelvic area right by my hip has random sudden sharp pains. also idk if its relevant but my lower back and sides hurt about were my kidneys are. i really dont know what to do and hoping someone can please help me.