Did it swell like a mother? I'm freaking out a little bit here-I was required to get one for work, so I did on Friday morning, when I was visiting my parents. It didn't hurt at all, but as the afternoon went on, it got kind of sore, which isn't unusual after getting a shot. Fastforward to this morning, when my whole arm is super sore and the injection site is red, puffy, and hot to the touch....awesome I'm waiting for the Dr's office to open so I can call....