Most common cause at This age are:
1. Diabetic neuropathy if ur mother is diabetic
2. Hypertensive
3. Vit
b12 deficiency
4. Old age neuropathy
5. Multivitamin deficiency
Fell free to consult with me with ur complete history and ur mother comorbidity if any for further evaluation
Next Steps
For further clarification, complete evaluation, correct diagnosis and treatment and prescription feel free to consult me on this PRACTO APP. Stay safe and take care of yourself