I recently started having a Chalky tallow taste,with a film in my mouth plus a lack of taste. This has been going on about 6 months. I can't to seem to make my mouth feel clean and there is no bad odors. Other than that I appear to my in good health

Optional Information:
Female , Age: 54

Already Tried:
Went to the Dentist,he deep cleaned my teeth.He doesn't have any anwsers. Tried homopath. things,and had my gen.Dr. look at it no anwers... Help.