I know T3 only is what some people need to feel better. I know it is the only thing that makes some people feel better. But for some it can be horrific. I'm writing this from personal experience, and just as a warning to others so they may take better precaution should they wish to use T3 only.
Here is my story:
I had sub-clinical borderline hypothyroidism, with free T3 at the bottom of the range. I had pretty much every hypothyroid symptom under the sun.
I decided to try T3. I got T3 prescribed, and started taking it. For the first month, I felt AMAZING to say the least, I thought I was cured. I made my way up to massive amounts in one day (which was a lot for me) up to 100mcg per day. I was feeling great.
As I was going on each day I was noticing that caffeine would trigger mini panic or shake attacks in me. I did not think much of it. One month in, I had my first full blow panic attack, heart racing, thoughts racing. I still did not think it was the T3. I didn't want to believe that something that made me feel so well could give me those feelings. So I reduced the dose a little. 80mcg per day, then 60mcg per day. All was well for a couple more weeks until those attacks started happening again, but more intense than last time with larger heart palpitations.
At this point I decided to get some blood tests. My free T3 results were not way over the range, but my sex hormones had went crazy (I am a male). My SHBG had DOUBLED, my testosterone levels SHOT RIGHT UP, and so did my estrogen. Doctors were perplexed, they thought I was SHOOTING UP STEROIDS!
I further reduce the dose to 40mcg, then 30mcg and finally 20mcg... where I had the largest anxiety panic attack of my life with full blown palpitations. I was unlike anything I had experienced before and I knew it was induced by the T3. The way I felt was indescribable.
I have now stopped T3 cold turkey, as per advice from endo. I will never touch this stuff again. This is for those who are thinking of self treating, or those who are wanting to increase your dose. It doesn't work for everyone. It doesn't make everyone feel great. Just please be careful!
- T3 can mess up your sex hormones and throw them out of whack
- It can cause severe heart palpitations
- It can induce panic attack episodes
- It can increase the rate of bone turnover (confirmed on blood test)
- You can lose muscle, bone and fat.
Please be careful people!