About 8 weeks ago endo increased T3 from 20mcg to 30mcg of liothyronine. Took 20 mcg on waking then 10 mcg in afternoon. Got fed up of trekking upstairs to take mini dose so started taking the 10mcg at night. Found it suited me better. Taking in the afternoon I have disturbed sleep. Endo was horrified and said second dose shouldn't be taken after 3pm. Tried again but makes me wakeful. Have searched on here for info. I am now going to try taking one 30 mcg dose on waking.
Concerned that my endo thinks I take T3 and it instantly 'gees me up'. The only effect I have noticed is that I don't fall asleep by 2pm in the afternoon and it prevents episodes of vertigo - which I get if the dose is too low (and I also got after I quit taking T4). He snorts at the idea that thyroid treatment is related to vertigo and has contributed nothing to my health improvement other than switching me to T3 (after muscle pain problems on years of T4) for which I am grateful. I now function but I'd still prefer to live!
Is it normal for T3 to have such a slow effect? I have a blood test coming up should I not take the T3 that day?