TSH & free T4 came back normal but have symptoms of thyroid problems

[drotherside]

TSH - 3.76
Free T4 - 1.20

Symptoms:
-mood swings
-always nervous
-can't put on weight (fat or muscle - I'm 6' and 135)
-always thirsty with dry mouth (I drink about 128oz water per day)
-shaky hands

My vitals are normal. What do you think could be causing this?

[drotherside]

Everything came back normal. Every single thing.

So I guess it's not the thyroid causing the symptoms. And I don't have diabetes insipidus. I'm at a dead end.

Thanks for the help, goolarra!

[ChitChatNine]

You have  brought back memories .. my Hashi's antibody test was a big fat ZERO (yoo hoo) and my Thyroglobulins have remained almost the same as 5 yrs ago when I had my surgery!

C~

[goolarra]

I hope this statement doesn't come back to kick me in the butt...

I have never heard of anyone getting a thyroid peroxidase test, so I'm fairly certain that what the tech input was the antibody test.  

However, with TG, there is both the TG test and TGab.  

I think you've got the right one.

[drotherside]

When the technician was inputting the tests into the computer, I didn't notice a Thyroid Peroxidase Antibody option. I only saw a Thyroid Peroxidase option. Are they the same thing?

[goolarra]

One is thyroid peroxidase antibody (TPOab).

The other is thyroglobulin antibody (TGab).  Be sure they order thyroglobulin ANTIBODY because there's also a thyroglobulin test, and you don't want that.

Technically, a positive TPOab is sufficient to diagnose Hashi's, but a negative doesn't rule it out unless you're also negative on TGab.  So, as long as you're doing it, might as well cover all the bases.  

[drotherside]

Thyroid Peroxidase is the anti-body test, right?