I know under the tongue is supposed to be more accurate ... but I'm wondering if it's really more accurate for those of us whose mouths are no longer 'standard' configurations. If it had been measuring my kids, I wouldn't have questioned it so much, or even on my husband. I just know that it's so hard to hold the thing 'under my tongue' and that my mouth temperature never feels the same as it used to ... also dryer, things like that. I can't help but think that must affect the temperature readings, right? I was definitely feverish yesterday, at least part of the time. But it wasn't something they could measure. It was also freezing in their office, so with a stuffy nose and breathing through my mouth some, that could easily have chilled things. I don't know, I'm just nervous that this is another life change I didn't know to expect.