I'm currently on 100mcg T4 and 20mcg (split 10 at 06.30 and 10 at 17.00). It has made such an amazing difference to me. My free T3 reading having moved from 4.6 to 4.8 has me feel like a new person. I feel so well and although I went though a few weeks of air hunger that is gone now too. Brilliant.
Really frustratingly now I have something else going on that is really worrying me. I have had three episodes when I have been exercising when my heart rate suddenly accelerates upwards - completely out of kilter with my exertion. The first time on my bike (same routine as I've had for ~ 2 years) and a very sudden rise from my steady state of 160 to 230 and within secs, I felt light headed and when I stopped it dropped to 92 - that time I think it was quite settled after. I had had 10mcg T3 in the morning, two coffees (at 11 and 1) and exercised at 15.00.
The other times I have pushed myself much less - I had similar sudden climbs when I was at about 120/130 and for no reason my heart rate rose steadily to about 160 - I then eased right off. Then for the next hour or two my heart rate seems to have its own ideas and fluctuates between 65 and 90 just going up and down of its own accord. These two times I noted that I exercised one hour after taking my T3 and with no coffee anywhere close.
I went to A&E last night after the 3rd episode and the checks they did there and then were fine. I mentioned my concern about my T3 but the doctor (and his backup) hadn't experienced any T3 and heart issues. I am already booked to have a scan tomorrow and a 24hr ECG in couple of weeks.
It is my gut feel though that this could be all to do with my T3, or is it just a crazy coincidence ? I thought that some of you in this super knowledgeable community may have some thoughts on my experience. Does it mean T3 doesn't agree with me ? Is there another combination that could work better ? I so don't want to go back to my half-life on T4 - yet I as, it is I'm scared to exert myself again - and that doesn't make for a full life either.