I've had migraines my entire life. I have one right now. They suck. Like really bad. Sometimes people ask me what a migraine feels like, and I try to describe it to them in concrete terms. About nine years ago, coincidentally about the same time I started getting treatment for my migraines, this video came out that perfectly, abstractly illustrates what they feel like.
Just pretend my head is the house. Everything going on inside is the migraine.
There you go. Now, time to medicate and get the people out of the house.