I've been experiencing gynecological issues for over two years, and have to date had 19 consultations, some face to face, some telephone. I have had three internal scans, regular scheduled cervical screening and waited 18 months for first gynecologist appointment. I experienced very heavy bleeding during my very regular periods and repeated UTIs, pain and random issues with brown watery discharge.   The three scans all showed different results and suggested various polyps or fibroids in the uterus. Finally had gyne appointment, It was carried out over the phone, and I was told the reason for no clear diagnosis was because I was overweight. I was put on the waiting list for a hysteroscopy. After waiting six months I attended the hysteroscopy appointment last week. The gynecologist couldn't find the neck of the cervix and some thing was blocking it. Then when conducting first internal I've had, stated that there was a problem and ordered urgent MRI. 
I'm worried sick and don't know what to think. If it was cervical cancer, surely it would have been picked up sooner? Are there any other explanations for the neck of cervix not to be detected.