Final answer:
Sherry is most likely suffering from a somatic symptom disorder, characterized by significant distress from physical symptoms without a medical explanation. While neurological disorders like Parkinson's disease can cause tremors, the lack of medical evidence for such conditions in Sherry's case points towards a somatic symptom disorder. Treatment usually involves therapy and medications to manage symptoms.
Step-by-step explanation:
Sherry is most likely suffering from a somatic symptom disorder. This type of disorder involves an individual experiencing physical symptoms that cause significant distress or impairment, which cannot be fully explained by a general medical condition or substance use. Somatic symptom disorder is one where a person feels extreme anxiety about physical sensations and is preoccupied with the belief that they have a serious illness despite medical reassurance.
It is important to consider that other neurological disorders like Parkinson's disease can manifest with symptoms like tremors, but Sherry's age and the fact that her symptoms have not been attributed to a neurological disorder by a doctor make a somatic symptom disorder more likely. Additionally, if she had a neurological disease such as Parkinson's, physicians would likely have noticed signs consistent with that diagnosis.
Moreover, headaches are common nervous system problems that can result from stress but can also be a symptom of more serious conditions. Treatments for somatic symptom disorders typically involve a multidisciplinary approach, including therapy and medication, to help control and manage the symptoms.