Hello,
You seem to be having the symptoms of metrorrhagia(heavy periods). Various factors causing it are endometriosis,ectopic pregnancy,
hormone imbalance,endometrial hyperplasia,polyps,use of IUD’s and depo shots, sexually transmitted diseases,PCOS and benign and malignant pathologies of the uterus. You should consult a gynecologist and get an ultrasound uterus and a comprehensive profile of investigations done.