Yes I managed to get stable BS levels within 2 weeks after treatment. I think the most important thing is to understand what is affecting your BS so you can take appropriate action.
Whilst flying I stricly follow the CAA protocol. Brief the crew about the condition. Measure the BS levels 2 hrs before flight, 30 min before off blocks, every hour during flt and 30 min before ldg.
Every 6 months you need to provide the CAA with some data and once a year the basic renewal.
For me it is not a problem. Of course the fingertips might get a bit sore but I just consider myself very lucky to be flying again thanks to the UK CAA. I understand the risk but with the medical aids and treatment nowadays I cant see why this conditions should preclude medical fitness. I sincerely hope that my data will help the CAA to convince EASA as well.