Temperature regulation and getting sick (fevers)

[HikingStick]

In just 24 hours, our little guy went from being well to being
hospitalized. He woke up early in the morning with a croupy cough, so
we treated him with cold and steam just as we did with our other
kids. He had a fever of 101 Fahrenheit, but we gave him Tylenol and
Motrin (generics) to fight the fever. Around midnight that night, his
fever spiked to 104 Farhrenheit. We gave him his next doses of that
one-two punch again, and watched his temp for the next hour. It
started to come down, so we put him to bed.

Just before 4 AM, he woke up coughing and distressed. My wife brought
him to bed with us, and we could tell he was very hot again, his
respiration was shallow and rapid, and his heart rate was very high
(probably 200). My wife grabbed a rag to sponge him down, and we
started planning which one of us would take him in (or both, if we
woke our eldest daughter). I noticed I couldn't hear his breath
sounds, so I looked at him and saw he was having a seizure. His eyes
rolled up and to the left, he had mild tremors in his face, and his
body was generally rigid. The seizure lasted about 60 seconds. When
it ended, he did not start breathing normally, or at all.

I gave him a rescue breath (thank God for all of those years of Boy
Scout training), he coughed and sputtered, and began breathing on his
own.

We called 9-1-1, and he spent the rest of the day in the hospital. He
not only had croup, but had also developed pneumonia and had an ear
infection--all coming on in only 24 hours! After getting his fever
down, getting him hydrated, and putting him on antibiotics, he came
home.

The thing that blew our minds was how quickly his fever spiked as his
meds came to the end of their dosage cycle (4 hours for Tylenol and 6
hours for Motrin). His temp spiked when he had one hour left for his
Tylenol and two hours left for his Motrin. Then, after his fever was
brought under control at the hospital and he came home, his
temperature hovered between 95 and 97 for the next 24 hours.

We've noticed that his hands and feet seem to get cold rather quickly,
and that fits with Sotos Syndrome (poor temperature regulation). I'm
wondering if others have had problems with rapid spikes associated
with fevers, or with periods of below normal body temperature.