Is my TSH level normal?

[megancannon]

my TSH level came back as 0.31 i have done some research and some sites say this is normal and others say it's not. is this normal??

[gimel]

To me those symptoms are inconsistent with having a low TSH.  You really do need further testing for free T3 and free T4 to better understand what is going on.  If your FT3 and FT4 are in the lower half of their ranges, that would be consistent with having hypo symptoms.  In that scenario your low TSH  may indicate that the pituitary is not producing enough TSH to adequately stimulate thyroid hormone production.

Rather than speculating any further right now, how about getting those FT3 and FT4 tests done and post them, along with reference ranges, so that members can advise further.

[megancannon]

the test was originally done because of pregnancy complications.

i have had one miscarriage and two extremely early deliveries due to contractions that could not be stop. my son and daughter both died.

finally after my third loss my doctors started blood test. my ana and ssb were positive and doctors assumed it was lupus. i have had all lupus tests done three times within the last 8 months and each time they have been negative. i have a positive test for sjorgrens syndrome but have not had further testing done yet or a diagnosis. i am currently waiting to get my last set of tests back from my rheumatologist. i think all she did was a re-test of the ana and ssb and a double stranded dna test.

my symptoms are..
severe back pain. lower, upper.. pretty much everywear.
muscle pain and weakness in arms and legs
dry mouth, severe vaginal dryness to the point that i end up with cuts
fatigue
head aches
dizzyness
chest pains
vision has gotten more blurry (i have never had good vision to begin with, but it's gotten worse)
weight gain (approx. 25 pounds in 5 months.) i have never weighed over 120 pounds and i all of a sudden gained weight and can't seem to lose it
and my hair seems to be falling out more. when i brush or wash my hair a lot more than usual comes out.

my doctors have seen my TSH results and have not said anything about them but a lady on this site said they seemed low to her.

[gimel]

The old reference range for TSH was .5 - 5.0.  Eight years ago the AACE recommended that the range should be changed to .3 - 3.0.  Your TSH is at the low end of the new range.  More importantly, TSH is a pituitary hormone that is affected by so many variables that it is inadequate as a diagnostic for thyroid problems.  At best it is an indicator, to be considered along with more important indicators such as symptoms as well as levels of the biologically active thyroid hormones, free T3 and free T4 (not to be confused with total T3 and total T4 tests).  Do you have thyroid related symptoms?

If you have not had tests other than TSH I think that as a start, you need to go back and request additional testing for FT3 and FT4 as well as TSH.   Some doctors are reluctant to test for FT3 and FT4, because they mistakenly think they don't need anything but TSH.  If your doctor resists, just insist on it and don't take no for an answer.  You're the customer.

Dependent on the results of those tests and also whatever symptoms you may have, further testing may also be advisable.  If you get those tests done and will post results and reference ranges from the lab report, members will be happy to help interpret and advise further.