Marvelon pill and heavier periods

II took this pill for 9 weeks straight. Initially, I felt good on Marvelon for around 10 days. I was put on this for suspected endometriosis but unfortunately, it made my periods heavier and cramping was worse. I had a horrible breakthrough bleed that was very heavy and lasted 9 days. I had acne during the first couple of weeks however this settled. I also had headaches and constipation for the whole time I was taking this pill.

Still had heavy & sometimes painful periods. Affected my mood very badly on the break week during the last 3 months of taking it!

I suffer also with Hypothyroidism so some symptoms have been difficult to identify the cause. I was previously on Microgygon which made me feel awful! This was an improvement. I do get awful bloating about a week before I’m due to stop taking for a break and have painful cramps. It’s better than others I have tried!