I gave birth to my daughter (first child) in Jan, I had to have an operation 8 weeks later to remove some retained placenta, following which I started to initially feel better having lots of energy then increasingly worse. I kept thinking it was because I had a new baby and was breast feeding which was why I was so tired. My symptoms of tiredness, fatigue, weakness, inability to remember things got worse so I had bloods and found my TSH was 80 and my T4 3, I was started on 25 mg of levo which didn't help then raised to 50 then 3 weeks ago had repeat bloods and found my TSH was 35 and T4 was 10 so my dose was doubled to 100, I initially felt like things were improving, I had stopped fainting and had more energy and sounded and felt more like my self and less zombified, but after doing a bit more my symptoms have returned but seem much worse, I can barley get up in the mornings, I have had extreme muscle pain, I feel short of breath and have started fainting and feel anxious. I don't understand whats going on and have to have more bloods tomorrow and an ECG, and have been told to raise to 125mg, but I just don't understand why I'm feeling worse after a brief period of feeling slightly better, things feel really hard, does anyone have any suggestions as to why I might be feeling worse, and if I should up the dosage?