If she is a home-maker then her health is of supreme importance as house dynamics depends on her.
There are many possibilities:
a. BPPV
b. Orthostasis
c. Vit-
B12 deficiency or other deficiencies
d. Primary brain disorders
e. Somatoform disorder
f. Hypothyroidism
Next Steps
You may consult on PRacto.
Health Tips
a. Plz observe her eye movements during the episode of chakkar/giddiness.
b. Search for the medical terms that I hv mentioned above on google and try to match her symptoms.