Qlaira and back pain

[Gemx85x]

I'm just wondering has any1 else been put on qlaira and had a problems on it? I been on it for 2yrs straight and the last few months I've started having problems I have now started having periods that look like black tar and back pain as well as stomach pain I've also notice pain while having sex. I have been the doctors and she's done tests to rule out it being anything else. She defo thinks it's all being caused by my endo and has requested I am seen urgently by the hospital. She has also said that the pain in my back is being caused by the endo being on the back of my bowel. Has any1 else finding they are getting back pain if they have endo on the back of the bowel? X