What is Fatigue?

A feeling of exhaustion, both mentally and physically, is referred to as fatigue. It is normal to have feelings of fatigue, but if this is a consistent experience, then a medical issue may be the cause.


If your lack of motivation and fatigue significantly impact your daily life, it is essential to speak to your doctor. Even if you have attempted to rest and recover, you may still want to see a doctor to determine what's causing your fatigue.


MOBI Doctor provides a convenient way to talk to a doctor about your fatigue from the comfort of your home. Our doctors will review your symptoms, past medical history, and lifestyle to determine the reason for your fatigue. Everyone is different, so it's essential to consult a doctor to resolve the problem.


Signs of fatigue vary with the underlying cause, but some of the more prominent indicators include:

  • Mental fatigue, like you can’t be bothered any more

  • A low mood

  • High-stress levels

  • Constantly feeling tired and having low energy


If you are having unusual or persistent symptoms, it is best to consult a doctor.


Factors that can contribute to fatigue include lifestyle choices or certain events occurring in one's life, such as:

  • Too much caffeine

  • Drug or alcohol abuse

  • Sleep problems - such as if you don’t sleep through the night or work shifts

  • Anxiety

  • Grief

  • Stress

  • Boredom, where your mind is not working hard enough

  • Doing too much or too little exercise

  • Depression

  • Certain medications

  • Poor diet


If you suspect any of the previously mentioned factors are causing your fatigue, try making minor modifications to your lifestyle. For example, if you are over-exercising, try reducing your exercise intensity and ensure you are getting enough rest and recovery time. Additionally, if you consume excessive caffeine or alcohol, try decreasing your intake to see if that helps improve your energy levels.

Associated Conditions

When you experience minor illnesses like the cold or flu, you commonly feel tired and run down. However, once your body has had a chance to rest and recover, you should find that your energy levels return to normal.


Various medical issues may result in chronic fatigue, such as:

Chronic Fatigue Syndrome

People with ME (myalgic encephalomyelitis), also known as chronic fatigue syndrome, often experience debilitating fatigue and other symptoms such as muscle pain and sleep disruption. The treatment plan for chronic fatigue syndrome is customized to the patient and may include a combination of medication, therapy, and lifestyle adjustments.

Sleep Apnoea

When people with sleep apnoea go to sleep, their throat narrows or closes, leading to interrupted breathing. This usually causes loud snoring and decreases oxygen levels in the bloodstream. As a result, they cannot get a restful night's sleep, leaving them feeling fatigued and exhausted the following day.

Coeliac Disease

You may suffer from food intolerance if you exhibit fatigue and adversely react to gluten-containing foods. A medical professional can perform blood tests to determine if you have coeliac disease.


Anaemia, which is caused by an iron deficiency, is associated with fatigue and exhaustion. During pregnancy and if you have heavy periods, anaemia should be considered as a possible cause of fatigue. Low iron levels can also be a source of tiredness and lack of energy.


Feeling tired is common in individuals with type one and type two diabetes. An excess amount of sugar causes this long-term condition in the bloodstream. Symptoms may also include increased thirst, frequent urination, and unintended weight loss. Blood tests can sometimes be used to determine whether a person has diabetes.

Underactive Thyroid

Women over 60 may experience fatigue, aching muscles, and weight gain due to underactive thyroid glands. This occurs when the thyroid gland does not produce enough of the thyroxine hormone. With proper treatment, these symptoms can be alleviated.

Mental health conditions

If you suffer from extreme fatigue, it may indicate anxiety, depression or seasonal affective disorder (SAD). By consulting a doctor, you can identify the cause of your mental health issue to develop an effective treatment plan.

When to see a doctor

In the event that you suspect that there is a medical condition causing your fatigue, it is wise to consult with a doctor. Our doctors have considerable experience in diagnosing the cause of tiredness and exhaustion and can provide effective solutions.


Mobi Doctor provides a convenient way to access a doctor from the comfort of your own home. You can securely connect with a doctor on any device, no matter where you are, and quickly receive treatment for your symptoms. Your doctor will ask questions, investigate other possible causes and offer the best advice to help you recover soon.


Doctors may ask various questions concerning the length of your fatigue and any other symptoms you've been experiencing. They will first attempt to assess if any underlying severe health issues cause the fatigue. Questions may range from your job, lifestyle, and periods to your bowels and family history. Blood testing may be necessary to accurately determine if a medical condition is the root of your fatigue. A doctor may refer you for further blood testing in such cases.


If your doctor does not think that you have an underlying medical condition, they can advise you on some lifestyle modifications that may be beneficial. Visit your doctor today to discuss your symptoms.

How we can help

How we can help

Our doctors are available seven days a week and can provide you with the support, diagnosis, and treatment you may require for your fatigue. They can also recommend that you see a specialist for further tests or treatment if needed. Appointments with doctors can be arranged to fit your schedule.


Connect with one of our doctors at Mobi Doctor with the click of a button and receive the care you require.