Because, my brain hurts.

Via Reuters: Brain differences detected in migraine sufferers

The researchers performed brain scans on 24 people who had a long history of frequent migraines — about four per month for 20 years — and 12 people who did not get migraines.

The somatosensory cortex — the area of the brain that detects sensations like pain, touch and temperature in various parts of the body — was 21 percent thicker in the people who got migraines compared to those who did not.

The biggest difference was in the part of the cortex responsible for processing sensory information from the head and face

Interesting, as mine seem linked to my sinuses and my neck.

Of course, the whole thing requires posting the following: