TSH w reflex to ft4 = 0.02 What does it mean?

[tgstock]

I went to the doctor because I've been having headaches behind my eyes and in my sinus area.  I'm tired much more than I used to be, my fingernails have become paper thin, and I feel like I'm having a harder time focusing. My eyes get so dry at night that I have to wake up and put drops in them.I don't have an appetite, but I gain weight easily. (I am female, late 40's, 5'5", 110 lbs) I exercise vigorously most mornings.

He did this blood test: TSH 2 reflex to ft4 - the result was 0.02.
He is on vacation, but the nurse called to ask if I have heart palpitations, or excessive sweating.  I don't.  
She said I have an overactive thyroid, and requested blood tests to confirm it.  They also came back consistent with a hyperthyroid result, but I don't know what tests they did.  It confused me because I don't lose weight easily and I don't have a big appetite - I thought those were the main symptoms.
She said they will monitor it and have me tested in another 2 weeks to see if they number stays the same.

I'm curious to know what might be going on, because the doc won't be back for another week.  The headaches linger and often I have clear blurry spots in my vision when they begin.  It's starting to worry me a little.

I appreciate any feedback about that TSH test result.
Thanks.

[grammy19]

I just received test results and I'm confused as well.
TSH w/reflex to FT4 was 7.31  - reference range 0.40-4.50 and T4 Free is 0.8 with  range of 0.8-1.8
No T3 test ran that I can see
Was retested today to double check because my doc was concerned. What does the result mean? Hypothyroid?

[goolarra]

That's a "normal" TSH.  However, are you having symptoms?  If you are, then further testing would be in order.  TSH is often very unreliable.

[wilsom]

I'm 60 years female and my last test tshw/reflex free t4 was 0.51 what this mind

[goolarra]

Be sure he tests FREE T3.  There's a total T3 test as well, and you don't want that one.

In terms of FT4, 50 mcg looks really good for you.

Before I was diagnosed with Hashi's, my "theory" was that I had DeQuervain's thyroidititis, which, like sub-acute, is "temporary".  My endo said that, although usually temporary (they can become permanent), they can last a couple of years.  I tested positive for both TPOab and TGab, however, so Hashi's it is!

Anyway, do get your FT3 level checked just to make sure it's adequate.  Keep in mind that many people find FT3 has to be in the top half to top third of the range.  

[tgstock]

Thank you.  I don't know the vitamin levels.  I'm switching back to my reg doc.  The endo said the 44 was too low for me.   The top labs were from 4/23/13 - earlier this week.  I feel much better, just getting tired and lost my apetite again.  Could be allergies.  Endo thinks I blame anything on thyroid, even things that aren't related.  I am going to ask my fam doc for help.  He will test T3 if I ask.  I'll also ask him to do those vitamin levels.  I'm glad you are weighing in on my latest test levels.  I think that means that the 50mcg might be a good does.  
The endo diagnosed me with sub-acute thyroiditis.   Don't know if he's right, but it's been going on for almost a year now.  I think I'll be stuck taking Synthroid forever now.

[goolarra]

Well, your FT4 is right on the money...it's exactly midrange.

Were those top labs from 2/20/13?  You were on 44 at the time and increased to 50 afterwards?

If you're feeling tired, you really have to take a look at FT3.  With FT4 so picture perfect, the answer almost has to be in your FT3 (if it's thyroid related).

I'm sure I must have asked before, but do you know your vitamin D, B-12 and iron/ferritin levels?