Low TSH, low end of normal T-3 and T-4

[misstequila00]

Back in April my hair stylist noticed that my hair was very brittle and seemed to be a little thinner than normal (I am cursed with VERY thick hair).  She recommended I see the doctor.  Doctor ran a TSH which came back low (.5 and teh normal range for this lab is .55-4.78).  He ordered a T-3 and T-4 and a few days later the nurse called and said they were normal.

I had an appointment yesterday and asked for my numbers.  The T-3 is 2.44 (2.3-4.2) and T-4 is .93 (.89-1.76).  First he told me that the numbers indicate hyper which floored me because I have none of those sypmtoms except insomnia and heart palpitations (which I think is stress-related).  Now I'm reading this site and seeing that low TSH should have high T-3 and T-4 if one is truly hyper...that my numbers might indicate a pituitary issue??

Because I pushed the issue (before reading this site!) he is sending me for a radioactive uptake test.  

Is there anything else I need to ask him to test for?  Am I jumping the gun on thinking there is an issue?  

My symptoms are:

I am always freezing
Brittle hair and nails
weight gain
always exhausted, yet I can't seem to sleep
very difficult to focus...a foggy like feeling most of the time
Insomnia
Heart palpitations

Thanks for any advice!

[misstequila00]

thank you so much for your quick response!  I am in northeastern Pennsylvania.

[gimel]

By the way, insomnia and palpitations can be associated with being hypothyroid as well as hyperthyroid.

[gimel]

It is good that you were tested for Free T3 and Free T4, along with the TSH.  With those symptoms, your FT3 and FT4 tests clearly point to your being hypothyroid, rather than hyperthyroid, as your doctor seems to think based on your TSH.  Your assessment of the possibility of a pituitary issue (secondary hypothyroidism) makes a lot more sense, and, in my opinion,  would be a better way to spend your time on testing rather than the uptake test.    

Based on your experience to date with this doctor, I am sure that you need to find a good thyroid doctor.  By that I mean one that will treat you clinically by testing and adjusting  Free T3 and Free T4 as necessary to relieve all those hypo symptoms, without being concerned by resultant TSH levels.  If you will tell us your location, perhaps a member can recommend a good thyroid doctor in your area.