Hi...
see
HbA1c 7.4 is diabetic range... even nerve damage may happen if sugars are having high variability
need more information and examination
to rule out
1. Diabetic neuropathy : vibration is just due to glycemic variability
2. ? Chances of hypoglycemia... but it will also associate with sweating, hunger... so you can check GRBS during symptoms
may neee to adjust Diabetic medicines
3. Any
Thyroid problem should also be considered
4. Ankle pain may also be some
vitamin dificiency
Next Steps
Check GRBS, heart rate, BP during symptoms
Also
TSH, Total T4,
vitamin D, & B 12
Health Tips
Consult diabetiologist