Unless it tastes bad or smells bad, my advice is to come back in off the ledge. 
I had the kind of the same question here: What does a fermenter infection look and act like? and the folks on here talked me back in. The pictures in that thread convinced me that I was fine. Even though mine looked crazy it was nothing like the nasty infection pics. To me, yours looks fine. I think I’ve gotten to the point that all the worry about infections is lessening. Even so , every now and then when I get too freaked out I remember there’s a guy on here that brews in trash cans! LOL 
