I am a very long term T2.
One of the complications of Diabetes is kidney problems. I successfully control my BGs with pills and a strict low carb diet but recently the medics found I had a high potassium reading which is indicative of kidney problems. I have been put on a low potassium diet but this, with the low carb diet makes eating very difficult and the variations of what I can eat and drink are few and far between. A further complication is that I have had to stop Ramipril which is for blood pressure as this is not good for potassium readings.
Make sure your team check your kidney function regularly. It's not funny.