Sympathy pains

My brain is broken. Twice in the last five minutes Megan the labrador has jumped up to see me and whacked her head into the corner of the keyboard tray. It makes a particularly unpleasant crack as she does so. She, of course, isn’t bothered in the slightest, but now my head is hurting. I can feel the woozy, neauseous, copper-tasting feelings of a head injury. This is stupid. I am developing sympathy pains with the dog. 

I am hoping this does not continue, given that earlier this week she was spayed.