Hello - i was diagnosed with hypothroid last April, and haven't found a stable dose yet. I am on liquid thyroxine, as for some reason i am very sensitive to any dose changes. I went to see the endocrinologist 2 weeks ago who said that i have to get my dose up as soon as possible, as i have been feeling terrible, and my T3 (i think) was quite low. I have upped it, but i know that i need more (gone from 68mcg to 77mcg), but need to aim for 100mcg. I get a really rapid heart rate after i have taken it goes up to around 120-130 per minute, which makes me feel very light headed and wobbly, and i have 2 young children to look after. My question is, can you spilt the dose - maybe to try 75 in the morning and a bit more (5 mcg or so) at night? Has anyone else has a sensitivity? I just want to get back to normal! Thanks!