From the floor to the skull.
How a tilt at the bottom of the spine writes the posture of the neck at the top, and why your migraines may start lower than you think.
The pelvis is the base the whole spine is stacked on. When a tight pelvic floor tips it forward into an anterior tilt, the body cannot simply lean forward and fall over. It compensates, curve answering curve, all the way up, until the bill lands at the base of the skull. Here is that cascade in one picture.
Reading the cascade
The migraine link, honestly stated
Tension at the base of the skull and in the upper neck is a recognized contributor to headache, and the forward-head posture that comes from a tilted pelvis is one of the surest ways to load that exact region all day long. This does not mean every migraine begins in the pelvis. It means that for some people the neck and skull-base tension that provokes their headaches has a source much further down, and chasing the head alone will keep missing it. When the floor lets go and the pelvis levels, the whole stack above it can finally unwind, and the neck stops carrying a load it was never meant to hold.
Sometimes the headache at the top of you begins with the floor at the bottom of you.
This is an educational model of how posture links the pelvis and the neck, not a diagnosis or medical advice, and not every headache has a postural cause. If you have new, severe, or changing headaches, see your physician. A screening here looks at the whole stack, floor to skull.