I keep getting ectopic Heart Beats in the morning primarily about an hour or so after taking my T3 dose. I know they're basically harmless but they still scare me half to death when they happen. Latest results all look good in the range so definitely not hyper but I used to get them randomly before I started treatment too.
From what you say it might be worth experimenting and splitting your T3 dose to see if taking a smaller amount in the morning makes a difference to the ectopic heartbeats.
As for the question is your FT4 to low, nobody can answer that. It would be too low for me, it would be absolutely fine for someone else. It's a case of tweaking doses to see where you feel best. It took me best part of 2 years to know for definite the right balance of Levo and T3 and where my FT4 and FT3 needed to be.
Looks like the experimentation has to continue - I'll try taking less in the morning and I might try increasing the levo to 125mcg as it's the less 'volatile' variable of the two.
I have sporadic tachycardia and I definitely know when that happens. But my 24 hour and 2 week heart monitors recorded ectopic heart beats and I don't feel anything at all with those (tachycardia episodes never happened whilst on the heart monitors).
I get them when I'm due another dose, so it might be that the T3 hasn't kicked in yet after an hour and your body is protesting. Can you take smaller doses more often?
Yes definately T3 related. This is proved by the incidence of the ectopic beats about 2 hrs after taking meds. I had this plus many many holters, stress tests, ECG’s etc. showed nothing. They said it was nothing but it scared me so I decreased the dose and the ectopics stopped. I then split my meds to half morning and evening. It worked. I did this after reading a blog on a fb page. The doc was ok with me fiddling too. Saved him the decision I guess.
I never had them when I was on T4 but they were really bad before I started treatment. It's very strange as I'd been using T3 for about 2 weeks before the ectopics reared their head again earlier this week but I did increase the T3 dose on Sunday to it's highest level (18.75 mcg) - so perhaps I just can't take all of that in one go.
Gonna try splitting my dose to see if it helps.....which will be fun with 18.75 mcg !!! Ha.
Just in case anyone has similar problems when adding T3 to T4 here's how I've now stopped my ectopics.
*In my case I was deficient in Folic Acid and within days of taking a 5mg prescribed supplement the ectopics stopped. I also added an iron supplement too just to be safe.
In my case the deficiency is probably caused by usage of Lansoprazole but if you do have ectopics when introducing T3 please get your folate/iron/b12 checked - because if your thyroid hormones are in range then it's probably that which is causing the problem !
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Probably a good job I don't feel the ectopics then 
starting t4/t3 combo
Increase needed but do I increase T4 or T3?
T4+T3 combo
On thyroxine 20 + years, now v high t4, low t3
Low TSH, low T4, T3 top of scale. Do my meds need adjusting? 
