You know, I had smoked for 34 years, 3 packs a day, and i never had that brown crud either (thank goodness). I've heard others talk about it and still other say it is part of the healing process. I think I have missed all that (perhaps I'M not normal?) But just like you, I have had such a dry throat with my quits-almost a raw feeling. Never sores in my mouth, though. However, excessive sunflower seed consumption has caused me a sore tongue or two! :)
Have a happy and successful quit...it can be done!