How do you feel when your blood sugar is over 300?

High blood sugar (hyperglycemia)

• Increased thirst.
• Frequent urination.
• Fatigue.
• Nausea and vomiting.
• Shortness of breath.
• Stomach pain.
• Fruity breath odor.
• A very dry mouth.

Is it safe to sleep with high blood sugar?

Is It Safe to Sleep with High Blood Sugar? Glucose levels that are occasionally a little high at night generally don’t pose serious, immediate health concerns. Most people with diabetes cannot avoid some high glucose levels.

What should you do if your blood sugar is 300?

The University of Washington recommends calling your doctor immediately if your blood sugar reading is 300 or above. High blood sugar can occur when you eat too much food or don’t take enough insulin. It also can happen if you forget to take insulin or if your insulin has spoiled after exposure to extreme temperatures.

What could happen if your blood sugar is over 300?

Blood sugar levels above 300 mg/dL can cause nausea, drowsiness, blurred vision, confusion, and dizziness, especially when standing up from a sitting or lying position.

Is a blood glucose level of 300 too high?

About High Blood Sugar (Hyperglycemia) A reading above 300 mg/dL is considered severe. If your blood sugar is above 250 mg/dL for two days, Philis-Tsimikas advises informing your doctor and asking for specific treatment recommendations. Blood sugar levels above 300 mg/dL can cause nausea, drowsiness, blurred vision, confusion, and dizziness,…

What is a deadly blood sugar level?

The American Diabetic Association recommends that a fasting glucose level above 126 mg/dL be considered hyperglycemic. Glucose levels in the 400 to 450 mg/dL range are considered “critical values” and require immediate attention. Symptoms of critically high glucose include confusion, lethargy, thirst, weak pulse and nausea.