I have just started taking levothyroxine and feel so sick - was feeling sick before but this has got worse, is this normal? how long does it take to start feeling a bit better? my tsh is 33 and my free T4 7.4 (range 9.4-12) i have only just started having symptoms of hypo like feeling like i have the flu all the time? and i have started to feel more anxious since my blood results came back worse than the previous ones.