Hi Taz not sure what has caused it, I had a big mouth ulcer on the roof of my mouth which freaked me out as I hadn't had one there before, a couple of weeks later I had a smaller one on the roof of my mouth and a couple of weeks after that the white tongue started. Of course freaked out and did the worst thing I could do which was google it! I haven't slept since, convinced myself I have my final ticket, then yesterday the white tongue didn't seem to look too bad, so I thought ok going to be fine after all, just about got my breathing under control and the jitters in my stomach controlled then cleaned my teeth tonight and saw the red part on my tongue. As you can imagine the panicking is now taking over. I do have a pharmacy nearby so maybe will call in tomorrow and see what he says. Thank you for your reply it certainly does help talking it over with you guys rather than sitting here writing my last will and testament!!!!!