Intermenstrual bleeding and cramps

Ever since I got ME, my period got really strong and painful. I started taking the pill, omitting the breaks in order to avoid the monthly crash I got from my period ever since. However, I still have intermenstrual bleeding every time I struggle with PEM. I also have regular cramps.

Today, I addressed my Gynecologist about this, wondering if I might have gotten endometriosis. She dismissed my concerns stating that she believes my cramps and bleeding to be psychosomatic and stated that everything is fine from a gynecological standpoint.

Hence my questions to other woman suffering from ME/CFS: do you also struggle with cramps and/or intermenstural bleeding despite taking the pill without breaks? Can this be related to my ME? Did anyone develop endometriosis after getting ME?