Thanks for writing in.
Fluctuating sugar level is no unusual especially at an older age. We need to check the exact timing and dosing
. In your mother's case the fluctuation is very high and I would recommend that she undergoes CGMS (Continous glucose
monitoring) to get an exact picture of when the sugars are getting low and when they are high. This will help to adjust the timing and insulin dosage better. I don't know where CGMS would be available in Pakistan but you can contact Medtronic to know where in Pakistan you can get it done... it is nowadays very much affordable and available everywhere.
Hope I have answered your query. If you have any further questions I will be happy to help
Dr. Om Lakhani
http://www.healthcaremagic.com/doctors/dr-om-lakhani/60313 (online expert diabetes