About two weeks ago I had a test done where they put a catheter threw my cervix to check my Fallopian tubes. Well starting two days ago I had a brown discharge and today I felt a unusual wetness down there. This may be TMI just warning you, And when I wiped it's literally looked like poop on the toilet paper. It had little black and brown clumps. It does not have a foul smell, and it sounds like it could be fistula but it doesn't have a smell like fences. It smells kinda like metal as if my period was here.