dh was mystified to get a letter asking him to come in for a blood test as hba1 levels indicated he was prediabetic but the last blood test he had was in 2022. He made an appointment and it seems that his levels were 41 and 42 in 2021 and 2022 but he slipped "through the net" and it wasn't noted.
He's just got his results back and it's 50 so he now has a diagnosis of type 2 diabetes. If we had known about this in 21/22 he could have made changes which may have prevented or delayed the onset.