Inside Your Head

When I first took up residence, We were neighbours who kept to ourselves. But I needed more room Abundantly provided Thanks to your unwitting generosity. That's when your trouble started. Those odd bouts of tiredness You put down to overwork and stress. All you needed was a holiday Or so you were led to believe. I was sorry about your little headaches But I had to stretch myself still further. Even beyond that point we were doing so well Until you began seeing double. That's when all hell broke loose And they found you had an unwanted guest. They tried to evict me But I had burrowed deep To keep you as my host. Our symthanatic relationship Means we must go together.