I've been on levothyroxine over a year, currently on 100mg and was increased to 125mg but the dose was too high. I still feel absolutely rubbish, the usual symptoms I have are no energy, sick feeling, brain fog, low mood etc etc. My bloods we're tested last week and come back in the normal range. My question is how can this be when I still feel so unwell? I know something isn't quite right.