my 11 and a half month old came down with a mild fever this evening and im sure what is causing it. i initially thought it was one of two things. the first being that she bumped her head today on a wooden stool, hard but not extremely hard. a purple mark showed up right away but no raised bump. she cried a minute but long and has been eating, playing and napping normal. the other being that she was fed blueberries a few hours following the head bump and a few hours before i noticed the fever. she has had a mild reaction to blueberries every time shes eaten it, just a mild flesh colored rash on her face arms and belly for a day or two afterwards. (i did cut them out of her diet but they were fed to her on accident). could either the fall or blueberries be causing her fever?