When the nurse came in to give me my shot yesterday, she asked me if I was right or left handed, so that she wouldn’t “poke” me in my dominant arm. I replied that I was a righty without thinking much about it, so she gave me the needle in my left arm. Shortly after when I was taken to the lab to get blood work done, without thinking, I offered the same arm. But as I got into my car afterward and started the drive home, my driving arm was sore and quite heavy. I looked down and realized that I drive with my left hand. I use my…