As a diabetic i can answer that. My blood sugar is at times high and other times low. Being diabetic doesn't mean your BS is always high. Fact is my body doesn't produce enough insulin, so I’m on meds these meds are base on a certain diet. Eat to much bread, rice, starch and my BS will be high. Now in December when I had covid, I didn’t want to eat. My BS would drop to 30-40 severely low. But all the while I am still diabetic.