Hello. In early January 2010, I came to this forum and started the following thread:
http://www.medhelp.org/posts/Thyroid-Disorders/Questions-about-Proper-Dosage-of-Thyroid-Medicine/show/1138851
When I originated this thread, I had recently been told that my TSH was 3.461 (normal range = 0.35 - 5.5) and that my free T4 was 1.05 (normal range = 0.71 - 1.81). I was taking 125 mcg of levothyroxine per day. My doctor was suggesting that I go to 137 mcg per day, but I thought that staying at 125 mcg per day might be a better idea. I started the thread to get advice on which dosage to take.
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I just wanted to update you guys on my situation and to get some more advice.
First of all, I decided to stay at 125 mcg per day.
Also, shortly after I was first diagnosed with hypothyroidism in summer 2009, I stopped taking Centrum multivitamin, which I had been taking with my first meal of the day for years. In late December 2009, my doctor told me that it would be OK for me to resume taking Centrum. Of course, to make sure that Centrum did not interfere with my body's absorption of levothyroxine, I would take the Centrum at night with dinner. I would have dinner (with Centrum) at maybe 2 AM or 3 AM, and I would take levothyroxine at about 11:30 AM or 12 PM, an hour or more before my first meal of the day. (I am not a morning person.)
So, from early January 2010 until around February 20, 2010, I took 125 mcg of levothyroxine per day. Also, during part of this time, I took Centrum at night. However, sometimes, I would get chest pains or some other kind of discomfort after taking the Centrum. So, I stopped taking the Centrum, probably in early February 2010.
For the week or two before February 20, 2010, I started feeling soreness in my arms and legs. I also started feeling some overall sluggishness, and I started experiencing some sweating (at various times of the day). My hypothyroid symptoms seemed to be staging a resurgence.
Around February 20, 2010, I took a blood test. I was tested for TSH and free T4, and I was tested for total T3 for the first time. My TSH was 1.919, my free T4 was 1.11, and my total T3 was 1.02 (normal range = 0.67 - 1.99). My doctor left me a message, saying that he feels that my dosage is correct and that he wants to do follow-up blood tests in six months.
Now, my TSH has improved a lot (from 3.461 to 1.919). However, my free T4 has risen only a little (from 1.05 to 1.11), and 1.11 seems to be a low amount anyway. The amount of total T3 (1.02) also seems to be low.
So, should I take 125 mcg of levo for six more months and hope that the free T4 and total T3 levels rise significantly and that the sluggishness and other symptoms are decreased? Or should I ask the doctor for 137 mcg of levo? Should I get T3 therapy (Cytomel)?
Also, I understand that total T3 and free T3 are two different tests. Was I supposed to have the free T3 tested INSTEAD of the total T3?
Furthermore, is it possible that my taking the Centrum caused the amounts of free T4 and total T3 (and the increase in free T4) to be so small? Is it possible that my taking the Centrum caused the resurgence of my symptoms?
Thank you very much for any help that you can give me.