Just had my levothyroxine reduced by 25mg ...(from 100micrograms to 75micrograms) and one week down the line and I've got extreme vertigo. Everything is spinning and I can barely function or work out which way is up! Also have loss of appetite and slight nausea, in addition to shivers (despite being very hot - or so I'm told!) also have had an achey head and joints... I really am no hypochondriac and I do just soldier on but this is extreme and beginning to worry me ( mainly the vertigo)! Is this anything to do with the levothyroxine (Teva) or is it more likely to be a flu/virus...? I've also slept between 10-12 hours each night since the 4th or so day of changing down ..? Any ideas.
Note : had been on 100mcg for 2 and a half months before doctor said I was over/hyperactive (despite not feeling any of the hyper symptoms at all and just ticking along!) Recent bloods showed one value serum free T4 value of 17.5 (9.0-19.0) and the TSH value was 0.12 (0.35-5.0).
Thanks - would really appreciate help!