Why was hysteroscopy done ?
Were you prescribed any hormones ? Are you taking any medications ?
Based upon your history probably you are suffering from DUB . (Dysfunctional uterine bleeding )
Dysfunctional uterine bleeding (DUB) is heavy or irregular menstrual bleeding that is not caused by an underlying anatomical abnormality, such as a fibroid, lesion, or tumor. DUB is the most common type of abnormal uterine bleeding.