You haven't mentioned the pre-existing diseases of your mother.
Beware of
Diabetes mellitus, ear problems, anxiety disorders. Check
kidney function by doing blood for urea,
creatinine.
Do a ECG and show it to a doctor to rule out problems with the cardiac rhythm. Rule out cervical spondylosis. A serum sodium and potassium can rule out serious problems with blood
electrolytes. Look out for diarrhea and vomiting.
Next Steps
Consult a doctor who will check your mother clinically/etc.
Health Tips
Ongoing medical observation is necessary.