Shailza, a 40-year-old female is having headache for the past 6 months. All her investigations were normal. She had several consultations and she had no relief of her symptoms. She still believes that she has some problem in her brain. Likely diagnosis could be:September 2010

**Core Concept**
Chronic headache disorders can be challenging to diagnose and manage, especially when patients have a strong conviction about their symptoms despite normal investigations. This scenario highlights the importance of considering psychological factors in patients with unexplained symptoms.

**Why the Correct Answer is Right**
Shailza's persistent headache despite normal investigations and multiple consultations suggests a psychological component to her symptoms. The most likely diagnosis in this case is **Chronic Hypochondriasis**, a condition characterized by excessive worry about having a serious illness despite medical reassurance. This condition is often associated with a strong conviction that one has a serious illness, which can lead to significant distress and impairment in daily life.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** While depression can be a comorbidity in patients with chronic headache disorders, it does not fully explain Shailza's strong conviction about having a brain problem despite normal investigations.
* **Option C:** Migraine is a common cause of chronic headache, but Shailza's symptoms have been ongoing for 6 months without any relief from treatment, and her investigations are normal, making this diagnosis less likely.
* **Option D:** Fibromyalgia is a condition characterized by widespread musculoskeletal pain, but it does not typically present with a strong conviction about having a brain problem.

**Clinical Pearl / High-Yield Fact**
In patients with unexplained symptoms, it's essential to consider psychological factors and perform a thorough psychiatric evaluation to rule out conditions like hypochondriasis.

**Correct Answer:** A.

✓ Correct Answer: D. Hypochondriasis