I noticed today my tongue felt thick on top and looked in mirror. It was white with brown or greenish looking coat on the top. The edges of my tongue isn't smooth and my tongue is a pale pink. I'm thinking I will need to drink more fluids and maybe have thrush or yeast or something. Most of color comes off when scraping and rinsing with Listerine, but its still there. No pain or swelling. Has this happened to anyone else? I probably call doctor tomorrow.

might be due to low carbing, too. I think I've read about people having that who were doing Keto.

I had that problem for a while because, one, they had a tube down my throat which agitated my throat and tongue, and two, I was dehydrated for a little while.

Something similar happened to me. I think it might have been because I used a lot of Listerine breath strips while I was in the hospital. Apparently, overusing products that kill bacteria (like mouthwash or breath strips) can kill off the good bacteria in your mouth that keep fungus under control and make you susceptible to developing thrush.

Based on some internet recommendations, I started rinsing my mouth with warm salt water (1 teaspoon salt to 1 cup of water) 3 times per day. This helped very quickly -- big improvement after a couple of rinses -- but took a few days to go away completely. I had an appointment with my doctor before it went away completely and she prescribed an antifungal mouthwash, but I ended up not needing it because the salt water fixed it by the time I picked up my prescription. Also, I stopped using regular mouthwash and breath strips.

Hope this helps!