janewhite1

Are you using a digital thermometer? If so, the most likely explanation is thermometer malfunction. I understand that the mercury ones were toxic,
but the consumer-grade digital models that replaced them are so unreliable they're basically useless.

I once had one tell me my temperature was 94 degrees when I was perfectly healthy.

If you continue to feel under the weather, get checked out by a doctor. But don't put too much stock in what one single machine says about your health.