Migraine comes unwanted.
Like Spring and Winter
In a tug-of-war
Migraine is the rope.
Like Past and Future
In a clash of wills.
Migraine numbs desire.
Like a blacksmith’s
fire and bellows
Migraine hammers the anvil.
Like the Ebb and Flow
of ocean waves
Migraine pounds
And finally recedes.
pelicansandprose 
My first reaction is that migraine doesn’t deserve this amount of attention. migraine won’t appreciate your words, but as a fellow sufferer, I most certainly do. Your effective use of repetition in your poem stands as symbolism for the recurring pain a migraine delivers. On the other side of the migraine you have written well. Hope you stay that way…