causes of blood sugar spike
Stress, illness and high blood sugar. A number of you have mentioned that your blood sugar runs higher when you are ill or under stress. Illness or stress can trigger high blood sugars because hormones produced to combat illness or stress can also cause your blood sugar to rise. People who do not have diabetes can make enough extra insulin to keep their blood sugar in a normal range during times of stress and illness. People with diabetes may need to take extra diabetes medication to keep their blood sugar near normal during times of illness or stress.