Fatigue incorporates three components:
the inability to initiate activity, reduced ability to maintain activity and difficulty with concentration and memory.
Fatigue should be distinguished from sleepiness, shortness of breath on exertion and muscle weakness, although these can also be associated with fatigue. Fatigue lasting six months or more is referred to as chronic fatigue.
Fatigue in anyone should be evaluated by a doctor to exclude all possible causes and to get counseling on how to treat it. Other medical causes of fatigue are the side effect of drugs, thyroid dysfunction, high calcium levels, rheumatologic illnesses, adrenal, kidney or liver problems. Some infections such as tuberculosis or hepatitis can cause fatigue. Depression is also a major cause of fatigue.
While unusual, uncontrolled diabetes can be the cause of fatigue. These patients generally also have other symptoms of diabetes such as excess thirst, frequent urination and blurred vision. Some drugs used to treat diabetes can cause fatigue by causing anemia or a metabolic change known as lactic acidosis. Yet these are unusual side effects.
Many diabetics with pain in the feet and lower legs have it because of diabetic damage to nerves. This is known as diabetic neuropathy. Diabetic neuropathy can also manifest itself as numbness in the feet and lower leg. Diabetic neuropathy is very common and can be treated.
Nonspecific pains in the lower back and legs are most commonly because of muscle weakness. Strengthening of the abdominal and low back muscles can frequently bring amazing relief to a lot of low back pain. Pains running down the back into the legs are possible signs of nerve irritation and even impingement in the spine.
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