Your dad should see an endocrinologist (diabetes specialist) as soon as possible. We cannot diagnose here. there is no way we can decidee whether this is a diabetes related complication, or not.
Your dad may have reached a stage where he needs to take insulin. With insulin he should not have a lot of high blood sugar. the endocrinologist can make that decision. Good luck to you and your dad~
Richard
Your dad may have reached a stage where he needs to take insulin. With insulin he should not have a lot of high blood sugar. the endocrinologist can make that decision. Good luck to you and your dad~
Richard