Hi
@susansteven , welcome to the forum.
That is a nasty situation you are finding yourself in, and I feel for you, having had gallstones attacks for a couple of years and an inflamed gallbladder before finding the cause and getting rid of the pesky thing.
There are many different medications for T2, but the first port of call is the foods you choose.
Depending on your current diet, there may be a lot or a little room for improvement there.
Do you use a glucose meter to test before and after meals?
This can give you a lot of insight on where you can improve. If a meal gives you a post meal reading that's much higher than the pre meal one, there were more carbs than you can deal with.
All carbs turn to glucose in the body, so the logical thing is to lower the carbs.
In your case, you need to go carefully because you're on gliclazide, which can cause your blood glucose to go too low. However, with your hba1c of 78 mmol/mol, your average BG must have been around 12mmol/l, lots of room to reduce.
Would you like to share what you usually eat? We may be able to give you some ideas.