Low TSH

[diana67]

I had my Thyroid removed in 2007 after having thyroid cancer. I was feeling pretty good until my doctor changed dosage of Eutirox.  My TSH was 0.02,  FT3 4,74 Lab level 3.9-6.8 and FT4 1,53 Lab level 0.93-1.70. Now I'm feeling tired again and gaining weight, also I have some pain in my knee joint. The dosage has only been lowered one day a week from 100 to 75, my question is with such a small reduction should I really be feeling like this and if so how long before things get back to normal, it's been 2 months so far...  What should my levels be and how can I achieve this?

[Mark Lupo, M.D.]

This is a very small reduction that would not usually cause a change in symptoms.  Would talk to your doctor and repeat thyroid levels -- the TSH goal depends the cancer severity and risk of recurrence.

[diana67]

I had my blood results back today,
TSH is now 0.01
FT3    5.6
FT4    1.53
Tireoglobulin ECL <0.1  Labs 1-80
TGAB <10  Labs <115
I thought my TSH level would have been higher.  Can you please explain what is normal?
Thanks again..

[diana67]

Thanks Jenn,
Like I said I felt good before my Doctor changed my dose.. So how do I find what is normal for me!!!  How can I raise my T3 level to normal?  I think my endo thinks I'm cranky, as she thinks it's highly unlikely I would notice any change in such a small dose.

[Jenn985]

Diana,
A website I found very helpful has been stopthethyroidmadness.com.  WOW!  I am a thyroid cancer survivor and have had to get away from the labs in order to find what is normal for me.  I am now a Certified Personal Trainer but it has been a long and arduous road to get here.  By the way, your T3 is low-normal.
Jennifer, CPT

[diana67]

Thanks, I've actually been and had blood tests taken today..  Do the FT3 and FT4 levels seem ok?  Am I Hyper or Hypo?