I get a powdery (like baby powder) taste in my mouth. I taste it every time my tongue touches my lips. About an hour later, it changes to a metallic taste and then back to powder. I am female and am not on any medication that could cause this.

Have you had dental work done lately? Is your tongue discolored at all? (thrush)

I haven't had any dental work, but my tongue is slightly discolored. It's pale with some white patches.

See your doctor. You could have thrush. Or a variation of it.