D.H.
Hi M.,
My son, who is now 12 went through the same high fevers between the age of 1 and 3. The fever used to be really high too...around 104 to 105 degrees, and used to terrify me. We took him to the hospital too for all kinds of tests but found nothing. After 3 and a 1/2 the fevers didn't come back. Now he doesn't fall sick much at all. So don't worry, it'll go away as his immune system builds up.
D.