multiple sexual part is one of the risk factor for cervical cancer
particularly when sexual activity started at earlier age as in your case. general symptoms of the cervical cancer is inter-menstrual bleeding
per vagina(bleeding in between cycle of menses), post-coital bleeding( bledding immediately after sex not related verginity) discharge from vagina, pelvic pain
, back ache. so in your case you should consult gynecologist and get your pelvic examination(PV/PS) Done to rule out cancer cervix. the fundamental thing now a days is HPV Virus as etiology of cervical cancer which is sexually transmitted disease
from male to female.