I am sure I need not describe the symptoms of a headache, since it is exactly what the word implies, although the ache or pain varies considerably in type and intensity. However, I want to stress the point that, in many instances, a headache is a symptom of some disease.
Naturally, you do not want to visit the doctor for every headache. However, I strongly urge you to do so under these circumstances:
If the headache does not vanish when the condition you believe caused it is corrected or relieved; for example, if getting sufficient rest does not stop a headache you thought was due to fatigue.
If the headache occurs often, is severe, or seems to be increasing in intensity and duration.
Your headache may be a symptom of some difficulty that can be corrected or a disease that should be treated promptly by your doctor. If it is not of this kind, it may be a migraine or a tension headache.
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