My baby boy got his 4 mo shots yesterday (1/3/13), and now today (1/4/2013) he has been running a fever. He hasn't slept really well today, and when he does sleep it is for an hour at a time, which means I don't get to sleep. He as also been congested. Coughing mucus up. His lungs are clear, just congested. I feel bad that there is nothing that I can do to make him feel better except cuddle with him.