10cm Adnexal mass in fallopian tube

Hi everyone, 

I’m looking for some advice from people who may have been through something similar. 
I’m 41 and have 3 children and have struggled with heavy/painful periods for years. After a 12 month routine ultra sound scan on 5th June, i was called later that day to say a 10cm complex cyst had been found on my right ovary graded 5 and i needed further tests to rule out malignancy.

since then I’ve had blood done. CA-125 came back elevated at 239 and was told all other tumour markers were normal. My mri has also shown that the complex cyst is actually showing as a Adnexal mass that is on my fallopian tube. My MDT meeting has been pushed back from Monday this week (15th June) to Wednesday so specialists consultants can review my results. I now also need a CT scan. 
I have also endometriosis, kissing ovaries and smaller Endometrioma cyst on my ovaries. 
I’m literally worried sick that I have cancer. I’m going through a lot at the minute.. my little girl has a terminal illness (not cancer related) and my dad has stage 4 prostate cancer. I also lost my mum to cancer when she was 35, so it’s a massive fear of mine. 

I’m just angry that I’ve been pushing my doctor to get a scan for heavy periods and feel like I’ve been fobbed off, when I could have found this months ago. I don’t feel like I’ve had any other symptoms other that a little bit of pain around my periods, but now I seem to be over thinking cancer symptoms. 

Any help or similar stories would be really appreciated x