Hi I have developed hypothyroidism. Only symptoms I noticed were mood related and swelling around eyes. Went to GP did blood tests. Phoned on Friday night by GP told TSH was over 100 and FT4 was 3. Had to start thyroxine urgently. Told me she had never seen TSH that high. I had hardly any symptoms that I was aware of before it became so severe. It seems to have started out of the blue. Started on the 50ug thyroxine but been unwell since starting it having tremors and mind and heart racing wit strange thoughts and feeling lips are numb , can't think clearly sometimes forgetting names for things or not recognising tunes on radio that I know so well, freezing cold and thumping headaches.
Hoping things will improve as I'm on last three months of maternity leave.