Nasty taste and dry mouth
Theresa,
I have this also. I know that dry mouth is usually from not getting enough fluids in. The bad taste in the mouth I think is your body releasing the fat. I don't have an answer for you other than drinking a lot of water. I read a suggestion of putting a bottle of water in the freezer maybe 1/2 hour before bedtime, then have the nearly frozen bottle by your bed so you can drink it if you wake up thirsty during the night. As to the bad taste in the mouth, I have been not only brushing my teeth, but really scrubbing my tongue which seems to help.
good luck,
corgimom