Baseline Health · Headaches

Headaches and Migraines

Why chronic headaches are signals of something upstream.

A headache is a signal, not just a nuisance to medicate away. Chronic headaches and migraines usually trace back to something upstream, blood sugar swings, hormones, the gut, food triggers, inflammation, or tension in the neck and jaw. This guide explains the common drivers and how a functional approach finds the trigger rather than only chasing the pain. It is education, not a diagnosis, and it is a starting point for a conversation with a clinician.
A steady baseline rarely hurts. When headaches become frequent, the body is signaling that something is off upstream, and the headache is the downstream expression. Blood sugar, hormones, sleep, hydration, the gut, and inflammation all feed the pattern, which is why chasing the pain alone so often fails. The signals are worth reading. The return is finding and calming the drivers, so the headaches lose their fuel. What follows is how to read them.

Headaches as a signal, not just pain

Naming a headache as tension-type or migraine describes the experience but not the cause. A functional approach asks what is triggering it, and treats the headache as a downstream signal of an upstream driver. That reframing turns a cycle of medicating into a search for the trigger you can actually address.

Headaches are signals from overloaded systems: stress, inflammation, blood sugar, sleep debt, hormonal load, hydration, and gut health all feed the alarm
The headache is the warning, not the problem, and not the whole story.

The common triggers

Chronic headaches rarely have one cause. Frequent drivers include blood sugar swings, hormonal shifts, poor sleep, dehydration, specific food triggers, gut trouble, inflammation, and tension in the neck and jaw. Finding the ones that apply to you is what makes the pattern addressable, and each connects to its own hub below.

Most headaches begin long before your head hurts: dehydration, sleep quality, blood sugar, gut health, stress, neck and posture, hormones, and inflammation
The pain is often the last chapter of a story that began hours, or even days, earlier.

Blood sugar, hormones, and headaches

Two of the most common and most overlooked drivers are blood sugar and hormones. Sharp drops in blood sugar can trigger headaches, and hormonal shifts across the cycle are a well-known migraine trigger for many. This section connects headaches to the metabolic and hormonal pictures. Blood sugar → Hormones →

The gut, inflammation, and the brain

The gut and the brain are closely linked, and gut trouble and inflammation can lower the threshold for headaches. Food sensitivities and an inflamed system are common contributors. This section connects headaches to the gut and inflammation work. Gut health → Inflammation →

Finding your triggers

Because triggers are individual, finding them is the heart of the work, through history, a look at diet and lifestyle, and testing a clinician interprets. This section connects to the testing hub and frames the search as the path to fewer headaches.

Don't chase the alarm, stabilize the system: sleep, nutrition, hydration, movement, stress regulation, and inflammation balance lead to fewer headaches
Upstream choices create downstream relief. When your foundation is strong, your body doesn’t need to scream to be heard.

Read the full guide →

Where these connect

Blood sugar

Blood sugar swings are a common headache trigger.

Hormones

Hormonal shifts are a well-known migraine trigger.

Gut

Gut trouble can lower the threshold for headaches.

Inflammation

An inflamed system feeds the pattern.

Brain

Headaches connect to the broader brain picture.

Testing

Finding your triggers is a testing question.

Frequently asked questions

Why do I get so many headaches?

Usually because one or more upstream drivers are active: blood sugar swings, hormones, sleep, hydration, food triggers, gut trouble, inflammation, or neck and jaw tension. Because they overlap, they point toward causes to investigate rather than a single answer.

Can food trigger headaches?

For some people, yes. Specific foods and food sensitivities are recognized triggers for many who get frequent headaches or migraines, which is why identifying personal triggers can help.

How are hormones connected to migraines?

Hormonal shifts, especially across the menstrual cycle, are a well-known migraine trigger for many people, which is why the hormonal picture is worth considering.

When should a headache be checked by a doctor?

Promptly, if it is sudden and severe, the worst of your life, comes with fever, stiff neck, confusion, weakness, vision changes, or follows a head injury. These can signal something serious and need medical evaluation.

Your life is your medicine.

Headaches are signals, and signals can be traced. If you want help finding your triggers, book a free 15 minute consult and we can talk through what might be driving them.

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Dr. Daniel Gonzalez, DC
Dr. Daniel Gonzalez, DC, functional medicine physician and chiropractor. Medically reviewed by Dr. Daniel Gonzalez. Last reviewed July 6, 2026.
This guide is educational and is not medical advice. It does not diagnose any condition and does not replace evaluation by a qualified clinician. A sudden, severe, or worst-ever headache, or one with fever, stiff neck, confusion, weakness, vision changes, or after a head injury, needs prompt medical care.
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