It's better you do an annual physical checkup if you have health insurance.
My husband had an anual checkup in May this year and was found with high glucose level. He was diagonised with diabetes afterwards.
The doctor said if he performed more physical excercise and eat less, he maybe recover. We were both horrified. So he went on a diet and lost 20 pounds in two months. Amazingly, his glucose level went back to normal now.
The doctor said a lot of people with diabetes doesn't know their illness at all. If this goes for a long time, it would be irreversible.
So so so, it is very important to have the exam!