What Are the Warning Signs of High Blood Sugar? High blood sugar often develops quietly. Many people ignore the early warning signs, assuming fatigue, cravings, or frequent thirst are normal lifestyle issues. But these can be some of the earliest high blood sugar symptoms your body is trying to signal. When blood sugar remains elevated for long periods, it doesn’t just affect your g... https://www.freedomfromdiabetes.org/blog/post/high-blood-sugar-warning-signs/5256