Non-Life-Threatening Side-Effect

I not only decided to get a flu shot this year, but actually got it today. The process was extremely streamlined and very well organized. There were probably fifty people ahead of me and it took about 25 minutes from walking in the door to walking out.

Now my shoulder aches. I forgot about that. I have dance class tonight and will have to hold my arms up. It's a good thing it's my left shoulder, because I can just rest that on the man's shoulder. His whole skeletal system can help me hold up that arm, whereas only his other arm helps me hold up my right arm.