My little girl is six weeks. She had her vaccinations last week and she got a fever, didn't eat for 14 hours and just slept it off. Since then she has been fine and she has gone back to her normal self and just sleepin like an angel. Last night she was awake most of the night fussing and she was tossing her arms around a lot.. She was making faces like she was tasting something bad or sour and had rapid breathing. I was able to settle her and she would take a nap but whatever was wrong it kept waking her up. Does it sound like reflux? She isn't vomiting or drooling. Could it still be from the vaccinations..?