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Understanding Diabetes Fatigue: Causes, Symptoms, and Effective Management Tips

by IBD Medical on March 25, 2026

Unfortunately, feeling fatigue can be a common experience for people managing diabetes, even when we have had an adequate amount of sleep. While there can be a multitude of reasons for feeling tired during the day, learning about some common reasons can help you understand how to change simple habits and improve general energy. 

 


Here are some reasons why you may be feeling fatigued from diabetes: 

1. Fluctuating blood sugar levels
 
Living with diabetes means that we deal with our blood levels rising and falling throughout the day. Often, our sugar levels play a role in our energy levels. When our sugar levels are high or low, this can lead to sudden mood changes such as feeling frustrated, or lead to decreased cognitive function and fatigue. 
 
Glucose monitoring will play an important role in helping to combat the extreme spikes or dips in our blood levels. By closely monitoring our levels, this can help us be self-aware, mindful and proactive to avoid fatigue and other potential side effects from having a high/low level. 
 
Physical activity and following a healthy diet can help fight the feelings of  fatigue. Starting with a simple change of having a well-balanced diet consisting of complex carbs, fruits, vegetables and lean proteins can help avoid sudden spikes in sugar levels, decreasing the chances of fatigue. As for physical activity, it may be the last activity we want to engage in when we’re feeling tired, but even a little movement will get the heart pumping and boost your energy levels! 
 

2. Medications

We may be on additional medications when managing a life with diabetes and the side effects could be a contributing factor to feeling fatigue. It’s mindful to note that everyone’s experiences and body reactions are very different, so it’s good to take note of whether you may feel different since taking your medications or insulin. Speak to your doctor, who can help work with you to personalise a management/treatment plan that can take into account your health requirements and your lifestyle quality. 
 

3. Underlying medical conditions 
 
Diabetes can be complex and there may be other underlying health conditions, either separate from diabetes or from diabetes complications. Some underlying medical conditions could include heart problems, Anemia, thyroid or adrenal issues, diabetic Nephropathy, nerve pain from high blood sugar levels, depression/anxiety. 
 
Consult with your professional medical team to better understand and get a plan together for your health map. Never be afraid to ask for help! 
 
Leaning on people who may understand or whom you trust can be a great way to get the emotional support you may need to start your journey of changing small habits for an improved lifestyle (hopefully one without too much fatigue!).


We have an online community space that could be a great starting point to connect with like-minded people, if you’re not a part of it already! Our community loves to share tips, ask and answer questions and there’s always someone to provide a helping hand if you want the support!

Explore our blog for more tips and resources on diabetes management.

Disclaimer: This blog is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified health provider with any questions about your condition. If you have a medical emergency, call 911 (US) or 000 (Australia) immediately, or visit your nearest emergency care center.

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5 comments
by Jerre Anne Wagner on May 28, 2026

I have had Type 1 diabetes for 68 years. As a child I boiled my glass syringes and sharpened my needles. I obeyed my docs, checked my urine, but I sneaked food anyway. When the insulin pump became available I was very happy. I chose Medtronic because it was easy to operate and my Endocrinologist recommended it. My hemoglobin readings have been mid 5’s to 6. However, now, the pump with the SmartGuard is and has been totally inacurate. So I do not use SmartGuard at all. I manage the pump myself but have encountered issues with scar tissue not allowing the insulin to be delivered properly. Am waiting for a longer insertion to deliver the insulin deeper from the supplier.

by Robert on August 15, 2024

Very helpful. Thank you.

by Rhonda on April 26, 2024

Wow, have all the symptoms mentioned! Thank you🫶🏻

by Ruth Igiebor on April 19, 2024

I have diabetic Neuropathy and struggle with sleep and fatigue, takes me a long time to get to sleep and I wake frequently, then I’m tired all day, vicious circle

by Louise K on October 31, 2022

Question: I had Covid beginning of August this year, so I was told at the hospital, minimal initial effects, received 3 days of antiviral intravenously and left the hospital. I was with my son and grand-son who did not show any signs of the viral infection. Now, I am having what looks like long term effects such as a definite need for more sleep, and an extra degeneration of problems resulting from a stroke 2 years ago. Any comments or suggestions?

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