Weird coloured tongue!

[bethabean]

Hi,

This is a bit gross but after eating sweet foods, I get a coloured tongue. It goes white or a bit yellowy and tastes quite sour. I have to brush and scrub it whenever I have chocolate or cake because I don't like the taste that's left behind. Does anyone else get this? Scaring myself into thinking something is really wrong!

I don't know about sweet foods but get it wish other foods, I think its normal, op.