The symptoms as mentioned in your post can be due to:
1. Any pathology in the vestibular apparatus in inner ear
(it is associated with maintenance of body posture & balance)
2. Any stress
or inadequate rest & sleep.
3. Decrease in blood sugar levels (Hypoglycemia
4. Deficiency of certain nutrients like Iron, Vitamin B 12, Calcium, etc. which interferes with blood formation & nerve conduction.
5. Long term use of certain medications.
Investigations like complete blood count
, estimation of blood sugar levels will be helpful.
So, it will be better to consult a Neurologist
& get a proper physical examination done.
Based upon that, appropriate management steps could be taken.
Wishing her a good health.