Welcome to the forum ,Bernie and congratulations on keeping control of your diabetes for so long on no medication!!
The starchy carbs,bread,potatoes,pasta and rice and all flour based products are often recommended by the doctors/nurses as a way of keeping blood sugars 'even'. However ,in a type 2 ,especially on no medication they tend to send the blood sugars up and cause 'spikes'.If you have spikes everyday then your Hba1c will reflect this and be higher than it should be.Yours,at 8.2% is high and it would be good if you can get it down below 7%.
If you can cut down on the starchy carbs or even cut them out altogether you will find that your blood sugars will go down.Do you do daily tests with a blood test monitor?
Have a good read round the forum and you will pick up plenty of helpful advice.