According to your sign and symptom you are suffering from xerostomia or dry mouth.
Dry mouth, or xerostomia, happens when you don't make enough saliva (spit). Saliva is important for mouth health.
Cause of Dry mouth -
--
diabetes,
stroke,
yeast infection (thrush) in your mouth or Alzheimer's disease,
or due to autoimmune diseases, such as Sjogren's syndrome or
HIV/
AIDS.
Snoring and breathing with your mouth open also can contribute to dry mouth.
Next Steps
the treatment -
you should increase water intake to hydrate each cell of your body.
take multivitamin limcee and Zinc.
Health Tips
if you have any doubt you can take consultation.
don't worry please keep positive attitude to fight any disease and any problem of your life