Headaches are not in your brain - they're muscular / fascial.

They're often because your posture is bad.

You're constantly leaning over to look at your computer and phone, your spine gets misaligned, and your head and neck muscles tighten up.

In fact - manual therapy (physically correcting the fascia + nerve compression) was shown to be equal to painkillers in reducing headache severity in a meta analysis of RCTs (PMID: 25748428).