What would cause evening headaches with feeling flushed?

Potential causes of evening headaches accompanied by a flushed feeling:

1. Hypertension: High blood pressure can cause headaches, particularly in the evening when blood pressure tends to rise. The flushed feeling may be due to increased blood flow to the face and head.

2. Migraine: Some migraine headaches can cause a flushed complexion, especially if accompanied by other symptoms such as nausea, light sensitivity, or blurred vision.

3. Medication Side Effects: Certain medications, such as vasodilators (which widen blood vessels) or hormone replacement therapy, can cause headaches and flushing as side effects.

4. Dehydration: Lack of sufficient fluid intake can lead to headaches and a flushed appearance due to decreased blood volume.

5. Alcohol Consumption: Drinking alcohol, especially in excess, can cause headaches and facial flushing.

6. Caffeine Withdrawal: If you regularly consume caffeine and suddenly reduce or stop intake, caffeine withdrawal headaches can occur, accompanied by feelings of warmth or flushing.

7. Menstrual Cycle: Hormonal changes during the menstrual cycle can trigger headaches in some individuals, along with hot flashes and flushing.

8. Fever: In certain cases, an elevated body temperature associated with fever can cause headaches and flushing.

9. Allergic Reactions: Allergies to certain foods, medications, or environmental allergens can lead to headaches and flushed skin.

10. Hyperthyroidism: An overactive thyroid gland (hyperthyroidism) can cause headaches and a feeling of warmth or flushing due to increased metabolic rate.

If you experience recurring evening headaches accompanied by flushing, it's important to consult a healthcare professional for an accurate diagnosis and appropriate treatment.