Yesterday, my son (he's 10) and I went to walgreens and had our flu shots. I'm pretty much fine with some pain at injection site. My son, however, is sick. He seemed to be more painful after the shot. He woke me up last night with a bad stomach ache and had fever of 101. I just gave him ibuprofen. He's home from school today sleeping on the couch feeling awful. He feels achy all over, dizzy when he stands, and pukey. He vomited once a little while ago. I'm wondering if all of this was brought on by the vaccine. Anyone have advice?