Weird Period, annoying doctors

Veronica

Since August my periods have been exceptionally weird. I did an external and internal ultrasound and they found a cyst and said that my uterine lining has thickened.

Then they prescribed me a blood thinner to take 2 weeks on and 2 weeks off until February.

They told me if I was older they would do a biopsy, but hopefully they can just fix it with pills.

Is this normal?

Does anyone else here have experience with this?