I can't give medical advise, just certification advise. The routine for third class certifcation with insulin is:
TWO HB A1c's 30 days apart, the "current one" witin 30 days of application.
Letter from the doc-
....that you have been educated as to the physiology of diabetes and can make good treatment decisions (a gruaduation certificate from a hospital course will do, too, for this part).
....that you have no nephropathy, nor neuropathy.
....that you have had no hypoglycemia that required outside intervention for the past year and not more than one in the past 5 years.
...opthalmologist's dilated exam - no retinopathy.
...letter from CFI saying he has seen you to be able to manage to measure your glucose while acting as PIC.
...Stress treadmill if over 40, negative, with tracings, fasting lipid profile, and serum creatinine.
...Two Hb A1c's >90 days apart, the last one ithin 30 days of application.
If you want to have a great decade in your 70s, your doc is probably concerned that your control right now borders on "sucketh". You might thnk its' good, but he know otherwise. If the file is good, I can get this one on the phone. But the file has to be good.
Annually, you need to submit 4 quarterly doc visit reports with quarterly HbA1cs and annual Opthalmologist's exam report. These can also be gotten on the phone.