Hi my daughter is 3 yrs old, has been having a fever since last Friday the 5th and its controlled every 4 hours with Tylenol. She is complaining that her throat hurts and is extremely tired since then. She has been sleeping a lot, for example yesterday she woke up at 8am didn't really play just laid on the couch pretty much all day. Took an 1.5 hr nap woke up for about 2 hours, not really active at all and went to sleep for the night at 7:30pm till 8am this morning, only because I woke her up. The babysitter said after I left this morning she took 2 bites of a waffle and went back to sleep for about 2 hours. She went to her 2 hour play activity at the YMCA and I was told she didn't do much, picked her up and she fell a sleep in the car all the ride home. This is not typical of her even when she is sick with a cold or ear infection. Should I be worried enough to take her to the ER?