I was battling with this all last week (thus my obfuscation) back and forth between my two youngsters. Fine one day... then spikey fever the next. We don't have a thermoter at the house, so I couldn't tell you how high they got, but when I had to pick them up at daycare it was 102.9.
Between us and the inlaws, we've been taking care of them. My hypothesis is H1N1, but, I have not taken them in. Battled with two days myself of the icks and feeling like crap - but as I'm sure most of us can contest, as mothers, we just don't get the down time to be sick, so I can't tell you if I had it or not.
They weren't eating, and did not care to drink either, but we forced fluids down them. So far, the major battle was getting them to drink fluids.