Hello, Welcome Thanks for consulting HCM,
I have gone through your query, as you have bad smell and taste dont worry tm it is not related to thyroid
and glucose , it can be related to digestion and oral hygiene
Do proper brushing twice daily , use tongue cleaner to clean your tongue .
mouthwash twice daily
Do warm saline gargle two - three times a day . Consult dentist
and go for oral prophylaxis.
Hope this will help.