Hello. I really don't reach out much but am so sick of this merry go round that has become my life. I'm desperately trying to regain some health, like so many if you on here, but can't. I'm on a very low dose of synthetic t4 and T3 but just can't seem to tolerate it. It's been 11 days since I added 10mcgms of T3 to my 25 mcgms of T4 and I'm having palpitations, dizzyness, feelings like my bra is too tight and a higher resting heart rate. Should I stop taking the T3 and go back to the low T4 dose i can cope with as that's better than nothing or stick it out??? I'm just worried that my body is under too much pressure right now? Also, does anyone know if it makes much difference if u take the t4 and t3 together or space them out?