When you're great at the job but numb to how much you do

I've got it down to an art now. A few clean lines that fix the problem and calm the person on the other end. But I send hundreds of them a day, and somewhere along the way I stopped feeling any of it. Name after name, ticket after ticket, all disappearing into a void. I'm good at this, and I can't remember the last time it meant anything to me.