Hello everyone.

I had SRS surgery in the UK 1 month ago. I researched the risks etc throughly, and i am very certain i have developed a fistula.
Gas escapes from my vagina after dilation, and feces is present at the end of the dilator (brown in colour and has a strong smell) i have rarely had bleeding or discharge after my SRS so i know it is not dried blood.
The symptoms are only present when i dilate, and bowel movements are normal. I am due to see my surgeon in one week and i am going to have my gp take a swab from my vagina to check for any bacteria found in feces.
Has anyone else experienced a fistula (RVF/ recto vaginal fistula)?
Will it heal by itself?
From my research, stretching the vagina will stretch the fistula, so should i dilate half an inch below my original 5" depth?
I hope someone can give me advice as i am very scared. thanks in advance.