Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
The causes of ageusia are so many as dry mouth
(most common), salivary gland
infections, gum problems, certain medications as ACE inhibitors, certain antibiotics, anti-depressants, antihistamine agents, allergy, infection, aging, trauma, poor oral hygiene
, excess use of tobacco, and others.
Causes of vertigo are benign paroxysmal positional vertigo (BPPV) mainly age related without reason, Meniere disease, labyrinthitis
, migraine tumors, CV stroke, head or neck injury
, and others.
Hope I have answered your query. Let me know if I can assist you further.
Dr. Purva Patel