headache and associated symptoms of nausea and vomiting will be included in subjective chief complaint.
A symptom is a personal sensation that only the person experiencing it can define. Simply put, a symptom is subjective and a sign is objective.
If a patient's symptoms can be subjectively described and there are observable signs, a doctor can typically make a diagnosis more quickly.
For instance, patients may self-report subjective symptoms to their doctors that do not always have objective results, such as pain, shortness of breath, headaches, dizziness, or persistent fatigue.
Because nausea is a fully subjective phenomenon and vomiting has both subjective and objective components, so-called objective measures may be deceptive.
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