What would cause headaches and fatigue?

Muscle spasm. 40's female w. headache & fatigue might have non-restorative sleep due to chronic pain. Muscle tension (superior trapezium muscle spasms) might be headache etiology. Reclined position can stress these muscles; reason for neck ache noted by many upon arising. Anemia, hypothyroid, fibromyalgia & many other ailments can express with headaches & fatigue, so that a general medical evaluation warranted.

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