I just left my obgyn office terrified. I had a follow up appointment to check on a cyst on my left ovarian. During the ultrasound it was discovered that I have a pocket of fluid that is about 3cm that is sitting behind my uterus. It wasn’t discovered the previous ultrasound. My doctor scheduled a CT to get a better understanding of this pocket. I’m beyond terrified. Has anyone experienced this before? The first thing that came to mind was cancer.