How do you know if your child is ill?

If you have got gadgets to play with, you might as well put them to good use.

Today I got a call from my sons teacher that my son had a headache. If I could come and pick him up. At home he fell asleep in my arms. And I was still in reach of my Flir One... ;-)

Nothing abnormal here:

But in thermal you can clearly see he is a lot warmer than normal. (had to flip the picture, because I could only manage to take one upside down with one hand)