Ugh maybe West Nile!?!?

So little mean has done great with the milk transition, knows he can't have sisters milk or cheese and will tell you if he drank it(gotta love kids who are that big on rules!!) so I've been not so worried about him lately.  He is definitely starting the temperament/mood change to being a two year old but yesterday he wasn't himself.... He was clingy, very irritable and then got a fever out of nowhere.... No biggie he wasn't that hot, Motrin and fluids and bed... He wakes up around 10:15 and is flushed and burning up!!!! Hasn't been long enough yet for Motrin and now Tylenol in the house, so ice packs and the rectal thermometer, which he HATES of course..... 104.5 HOLY HELL highest fever he's ever had!! I call the nurse hotline for our insurance, after asking questions, and with confirmed cases in the area she suggests I take him to the ER and have him checked for West Nile.  Oh joy.  The ER nurse was not to my standards but oh well he's getting seen.  Chest X-ray, urine culture and blood draw later we have no clue, could be viral that's not showing in his blood panel or West Nile but that test takes 2-3 days to get back.  At discharge over two hours after his next Motrin dose we are down to 99.3. Today he was warm and not himself in the morning, more Motrin and LOTS of cuddles/TLC, but for some reason he woke up acting just like himself after nap. Thank goodness, still have to watch him and we wait for the test results but OMG that scared this momma do after being up for more than 36 hours it's bed time..... Gotta get up early the little girl I'm watching is dropped off at 6:30 am. Update once I have more info!!