6. Mood Swings

Having uncontrolled high amounts of glucose in your system can cause mood changes. Changes in mood that are not easily explainable may be possible in people who have diabetes. These swings are one of the better known signs of diabetes and are quite similar to those experienced by people who have depression. If you notice that you are feeling gloomy, sluggish, and down for no reason at all, seek a medical expert so that they can determine where these are coming from.