Been on 50mg since nov 2018 which brought my tsh from 9.7 to 3.5 after 8 weeks. In beginning of may 2019 my tsh was 19.7. gp has put me to 75mg with view to see me in two weeks again, likely to put me up to 100mg. However, in may i did feel tired and had been having regular palpitations april and may . Went on medication around may 7th. my palpitations died down around may 28th. But since around may 30th i’ve had extreme exhaustion , concentration issues, constant dizziness , out of breath sometimes and waves of occasional nausea . i’m really struggling to work . in amongst this i’ve had 3 small chest pains to right side and one huge quick chest pain to the centre all on the one day . ended up at a and e with ecg , blood tests and x-ray , all came back clear . hospital told me my tsh is now 8.7. hospital planning to put heart monitor on me for 3 days just to make sure they haven’t missed anything , but the doctor said all symptoms could be related to thyroid and medication adjustment . What’s everyone else’s thoughts on my symptoms ? it’s coming up 3 weeks now of all new symptoms, a week since the chest pains , and previous palpitations have significantly calmed down 3 weeks ago so i only get mild feeling ones about once a day .