LO2 had her 12 month vaccines 9 days ago - aside from normal fussiness she had no reaction to note. This morning, she woke up with this on her leg. It is raised and hot. If it happened immediately after the shot, I would think it has normal, but more than a week later? The nurse at the ped's office was not super helpful - "bring her in if you think she needs to be seen or just keep an eye on it". Has anyone experienced this before?