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Hi - Looking for a little more insight. And thanks for the response.

I wanted to have 5 days of Basal Body Temperature to get an average from a decent sample. I will list them below with some observations.

[U]Day 1: [/U] 97.4 F, slept 8 hr the previous night - woke up felt flu-like but it passed during the day
This was a work day, so my alarm went off at 6:45 a.m. and I immediately took my bbt

[U]Day 2:[/U] 95.8 F, slept 6 hr the previous night
This was a work day, so my alarm went off at 6:45 a.m. and I immediately took my bbt

[U]Day 3: [/U] 96.2 F, slept 7 hr the previous night - woke up with sore throat but it also went away during the day
This was a work day, so my alarm went off at 6:45 a.m. and I immediately took my bbt

[U]Day 4[/U]: 97.8 F, slept 9 hr the previous night
This was on the weekend. I actually was up a few times before I decided to get out of bed at 10 a.m. (you know, washroom stop, tossing and turning) That said, I took my bbt once I was ready to get out of bed and not when I first woke up.

[U]Day 5:[/U] 97.0 F, slept 6 hr the previous night
This was a work day, so my alarm went off at 6:45 a.m. and I immediately took my bbt

AVG BBT: 96.8 F

I guess here are my questions:
(1) Most of my BBT are in the same range, 95.8 - 97.8. The highest reading was on the weekend, after my longest sleep. So, is sleep a factor in the BBT?

(2) Also, the highest reading was taken at ~10 a.m., but I went to the washroom at 7 a.m. and also was up at 8 a.m. and 9 a.m. before finally getting out of bed at 10 a.m. Should I have taken my bbt at 7 a.m. even though I was up and back asleep on a few occaisions before finally getting out of bed for good at 10 a.m?

(3) Is 5 days a significant enough of a sample size? Also, is my average really considered too low? Is bbt really a good indicator of hypo and should I mention this to a doctor or will I be laughed at by the medical community?

On a seperate item - I was actually a little sick last week, that is why I did not take every reading on successive days, especially because I thought I had the flu. I felt a little feverish. So, one night last week I took my temperature at night, expecting to see a small fever, like 99-100F, because of how I felt. Instead, I got 97F (with both my mercury and digital therm). Is it bizarre to feel feverish yet still get a reading below 98.6F?

Thanks in advance.
Following is the method I've seen described for the purpose of screening for thyroid problems.
While I have seen some say to take an average of 3 days, the late eminent thyroid expert, Dr. Broda Barnes said that a 10-day average is a better indicator. Realistically though, it's hard to do for 10 days, and a target average somewhere in between those two periods is probably good enough. I took a 7-day average myself and came up with something like 96.4. Quite a few experts will say to also take your temp several times a day... upon awaking, at 9 am, ll am, and 4 pm. There should be a corresponding rise according to your activity. (Mine never rose more than a degree all day long.)

The thing is.... most doctors (other than holistic practioners) are not going to take the information too seriously anyway. Taking your BMT can even work against you if a doctor doesn't know much about thyroid and is prone to prescribing antidepressents; he will see you as a bit of a nutcase, overly fixated on your health, and you'll be on your way with a Prozac script, sure as shootin'.
A very good thyroid doctor will probably view a low BMT as one of many indicators to consider in diagnosis, but hardly any - probably none - would diagnose or treat based only on that.

Here's the method:
At night, shake down a thermometer - be sure that it is shaken down and below 95 degrees. Next morning, on awakening, put the thermometer under your arm with the bulb in the armpit with no clothing between it and the armpit. Leave it there for 10 minutes (use snooze alarm if you wake up to an alarm). Just drowse for that time lying still.

After 10 minutes, take the thermometer out, and read it, writing down the result right away. (On waking, most people don't think clearly and might forget the reading). This is known as your Early AM Basal Temperature, and the "normal" should be between 97.8 and 98.2. This reading taken by armpit is somewhat lower and somewhat more accurate than by mouth. If you have a low-grade infection this may read higher than your "normal", therefore if it is in that range above, you should repeat the above procedure every other day for a week or so. If a menstruating female, also do it on the 2nd and 3rd day of your period.

If lower than the range, you are probably hypothyroid, and if higher, then you are probably hyperthyroid (or you have an infection somewhere).

Hope that helped.

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