My son, 4, received vaccinations on 1/4/16. They were DTaP, IPV, HiB, Hepatitis A, influenza, and MMR. On the 14th, he woke up with a fever and has been sluggish ever since. His fever comes back every 5-6 hours which we combat with ibuprofen. His appetite has been nearly nonexistent, but thankfully he's continuing to take liquids as normal. Doctors have informed us that these are normal reactions to him receiving so many shots at once, but how long can we expect him to be this way? It's tough to see the little guy look so rough and act so weak and lifeless.