I have been on T3/T4 combination treatment for the last 10 years and the last year with the guidance of my doctor have been trying out different treatment combinations. The latest being to stop T3 completely and go back on T4 only. Just got my blood test results and my TSH is low at 0.07 with a T4 of 19 and T3 1.6 (not sure whether this is free or total T3).
Have to say I have not been feeling too bad since stopping the T3 (and having a low TSH). only thing I had noticed was perhaps a slight increase in repetitive type behaviours eg overly checking things/being a bit more pernickety and have been more inclined to spend money which in some ways has been good as have made more progress sorting out my new flat - less procrastination more action. Have also been more productive and proactive at work. So I can see why some people prefer having a low TSH. I wonder whether having a low TSH last year was what made me eventually actually get round to looking for and buying a flat. I find it fascinating how it can affect us psycholigically/behaviourally.
Surprisingly given my TSH is so low I put on a few pounds in weight so I decided to cut back on what I ate but I have been unable to lose any weight despite eating much less at times. I would say my appetite is less as normally I get ravenous if I don't each much for breakfast or have my lunch late and some days lately I found I didn't even feel like eating lunch.
Compared to having a similar TSH last year when on 20ug T3 plus T4 I would say I felt worse on the 20ug T3/T4 combo.
I have an appointment with the endo on Fri where I imagine my dose will be cut. Wonder how that will make me feel.