My gums and top teeth have been feeling slimy, like they are covered with some layer of thick but extremely slick goop. Has been going on for a few months, out of nowhere. I have tried absolutely everything, baking soda, high quality mouthwashes, electric toothbrush, tongue brush, cleaners, scalers, drinking tons of water, NOTHING works. The only changes I made in a relevant timeframe prior to this occuring were quitting smoking, and I also significantly lowered my milk consumption. But the slime feeling didn't start until some time after both of those. I have been exercising a ton since about the time this began if that matters. It's driving me crazy, I brush and brush and brush, scale, floss etc and every day like clockwork the slimy feeling perists.