I am new to the forum having been diagnosed with hypothyroidism in July after a routine 'well woman' blood test. The doc spoke to me on the phone, diagnosed the problem and gave me the meds (50mg levothyroxin) I felt better - had another test after 2 months which showed the FSH level had come down from 9 to 4. She said that was good so I stayed on that dose for another 3 months. After another test I was surprised to find the level was now 6.1. Thought I'd better take it all more seriously and go to speak to a doctor armed with decent information. I did initially feel better and relieved that all these minor-ish symptoms I had felt for so long had a real cause. I'm not one for the docs so had put up with insomnia, confusion, palpitations, aching joints, constipation, lack of libido etc. Nothing life threatening. Now I can see that maybe my quality of life could be better (not bad now you understand) but I think I deserve it and the family deserve it. Question is...1). is 4 a 'normal TSH level? (I am now on 50mg one day and 75mg the next.) 2). They quoted, again on the phone, another level of 14 which the doc said was normal but didn't tell me what it was. I was too surprised by the call to ask. I am 61yrs old, working as a teacher and usually know how to stand up for myself but feel a bit at sea without enough information. Finding this forum has galvanised me into action...I just need some facts now. All help gratefully received! Thank you.