About a week ago, I went off NDT and back on T4 only, after developing a host of strange symptoms in recent months: intense carb cravings and weight gain, intense itching, dry, flaky skin, racing heart, hair loss and heat and exercise intolerance being the most noticeable ones.
I have gained 25 kilograms since last summer. I suppose HRT is partly to blame, especially since I've taken progestin which is known to cause weight gain, as well as high doses of cortisone that I took for six weeks. But it's both frightening and interesting to realise I've been able to put on that amount of weight in such a short period of time, especially while on NDT since T3 is said to induce weight loss.
I should add that I never managed to lose weight on NDT alone, not even when optimally dosed, but only lost weight (28 kgs) when I started taking berberine (diagnosed with insulin resistance in 2012 but refused to go on Metformin until I had tried natural alternatives).
Anyway, I read in the blog "Tired thyroid" that T3 can cause insulin resistance so weight gain.
Some of my symptoms have subsided or even disappeared since going off NDT: I no longer crave carbs as intensively, I lose much less hair, the itching is all but gone and I can no longer feel my heart beat. I also feel good on T4 only, but it's only been a week so I guess it's a bit early to know for sure.
But, what I wanted to know is if others have experienced the same thing; that is, being on NDT for years, feeling good on it, only to end up feeling hyper and being unable to adjust the dosage (I titrated it down, from 5 to 3 grains, but still felt seriously overmedicated)? The way I feel right now, T4 only is better for me, but why would I feel that way all of a sudden...? The doctor who put me on NDT seven years ago diagnosed me with impaired T4 to T3 conversion which seems common in people with Hashimoto's. Is it possible for that condition to heal spontaneously, thus making you capable of converting enough T4 to T3...?