Thanks for your query.
From your ultrasound scan it is apparent that you are having endometrial hyperplasia
This means thickening of the endometrium, or lining of the uterus.
It is due to baseline hormonal disturbances, due to age , stress, anxiety, hypothyroidism
, diabetes, obesity, polycystic ovaries
The lining of the uterus keeps growing, and fails to get shed off on time, leading to a thickened endometrium
Finally when it DOES shed off, it leads to continuous and heavy bleeding.
You would require a diagnostic and therapeautic curettage to control this.