Hypoglycemia & hyperglycemia
Hypoglycemia and hyperglycemia refer to low and high blood sugar levels. Both are common challenges for people living with diabetes. Learning how to recognize and manage these changes is an important part of protecting your health and feeling your best.
What Is Hypoglycemia?
Hypoglycemia means your blood sugar is lower than normal. It can happen if you take too much diabetes medication, skip or delay meals, eat less than usual or are more physically active than planned. Symptoms often come on quickly and may include shakiness, sweating, confusion, irritability, weakness, dizziness or intense hunger. Severe low blood sugar can lead to fainting or seizures.
What Is Hyperglycemia?
Hyperglycemia means your blood sugar is higher than it should be. Common causes include eating more than planned, not being active enough, illness, stress or missing diabetes medications. Symptoms may include fatigue, increased thirst, frequent urination, blurry vision or slow healing of cuts and wounds. Ongoing high blood sugar raises the risk of long-term health problems.
Why Blood Sugar Balance Matters
Keeping blood sugar within a healthy range helps you feel better day to day and lowers the risk of complications such as heart disease, nerve damage and kidney problems. Some ups and downs are normal, but knowing the warning signs and how to respond makes a meaningful difference.
How TidalHealth Can Help
The TidalHealth team includes endocrinologists, nurses, diabetes educators and registered dietitians who support all aspects of blood sugar management. We provide guidance on recognizing symptoms, preventing highs and lows, responding when levels are out of range, managing meals, activity, stress and medications, and handling sick days or disrupted routines. Managing blood sugar can feel overwhelming at times, but you do not have to do it alone. Our team is here with practical advice, encouragement and care tailored to you.
What are the symptoms of hypoglycemia?
Symptoms may include shakiness, sweating, confusion, irritability, weakness, dizziness or feeling very hungry. Severe episodes can cause fainting or seizures. Learning your personal warning signs and having a plan in place is important.
What causes hypoglycemia?
Low blood sugar can result from too much diabetes medication, not eating enough, skipping meals, increased physical activity or drinking alcohol without enough food. Your care team can help you identify risks and prevent episodes.
What are the symptoms of hyperglycemia?
High blood sugar symptoms include fatigue, increased thirst, frequent urination, blurry vision and slow healing of wounds. Ongoing symptoms should be discussed with your healthcare practitioner.
What causes hyperglycemia?
High blood sugar may be caused by overeating, inactivity, stress, illness or missed medication doses. Regular monitoring and early adjustments help keep levels in range.
How can I treat low blood sugar (hypoglycemia)?
Check your blood sugar if possible. If it is low, use a fast-acting sugar such as glucose tablets, fruit juice or regular soda, then follow with a snack or meal that includes carbohydrates and protein. Your provider can help you create a personalized treatment plan.
How can I treat high blood sugar (hyperglycemia)?
For mild elevations, drinking water and gentle activity, if safe, may help. Always follow your provider’s guidance for medication adjustments. Seek medical advice right away if blood sugar is very high or you have symptoms like nausea, vomiting or trouble breathing.
How can I prevent episodes of hypoglycemia and hyperglycemia?
- Eat regular meals and snacks
- Take medications as prescribed
- Monitor blood sugar consistently
- Stay active as recommended
- Share changes in routine, health or stress with your care team
TidalHealth is here to support you with education, resources and practical guidance to help keep your blood sugar in a healthy range.
