Fatigue and weakness can be caused by a variety of factors, including medical conditions, lifestyle factors, and mental health issues. Here are some common causes of fatigue and weakness:

• Medical conditions: Many medical conditions can cause fatigue and weakness, including anemia, chronic kidney disease, liver disease, lung disease, infections, autoimmune diseases, heart disease, and thyroid conditions.

• Lifestyle factors: Lifestyle factors that can cause fatigue and weakness include dehydration, poor nutrition, lack of exercise, and sleep disorders.

• Mental health issues: Fatigue can be a symptom of mental health issues such as depression, anxiety, and stress.

• Medications: Certain medications can cause fatigue and weakness, including antidepressants, antihistamines, and blood pressure medications.

• Heart and lung conditions: Heart and lung conditions can affect blood flow in the body or cause inflammation and may lead to fatigue.

If you are experiencing fatigue and weakness, it is important to speak with your healthcare provider to determine the underlying cause and develop an appropriate treatment plan.