What does Porque siempre me duele la cabeza mean in English?

Answer 1

The Spanish is not a good sentence. Are you trying to say, "Because it always hurts my head."?

Answer 2

If what you wrote is meant to be a question (even though question marks were omitted), it means "Why do I always have a headache?"

Answer 3

In other words, it makes a huge difference how you spell the first word.
Porque = Because
¿Por qué...? = Why

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