I was diagnosed with under active thyroid last week via a routine blood test with the nurse. Didn't see GP, but prescribed 50mcg levo daily. I've been taking this daily. Level was 5.94 (range 0.5-5.5) and free t4 was normal at 14.9. B12 on low side at 258 ( range 211-911) but GP said (via the receptionist) that she wouldn't prescribe me anything for b12 and that I can buy over the counter if I want. Tried to speak with the GP on the phone about starting on 25mcg but she got the receptionist to call me to say that I am already on a low dose. Need to go back in 4-6 weeks for tsh and antibodies. I made an appointment to see gp yesterday and saw a locum gp. She said my result looks borderline and as I have normal t4, she probably would not have prescribed me levo and especially not 50mcg. She said I can drop to 25mcg if I want to, but looks like the 25mug is a different make. I also asked if I can be tested for vitamin D, folate, ferritin, iron ( can someone explain why these tests are necessary). She agreed and asked me to go back for these tests (but she hasnt written iron on the blood form, is it the same as folate and feritin) and the tsh and antibodies in 6 weeks, she pretty much left it to me whether / when I wanted to be tested. I've made the appointment for the blood test for next wed. Should I continue taking the levo or just change my lifestyle - more yoga, exercise, better diet ( not in a stressful job now either). Should I go for the test next wed - will the antibodies reveal anything if I have not been taking the med for long ( is this test to indicate if I have hashimotos), or should I wait 6 weeks. Do I need to be tested for anything else? A guy I spoke to about acupuncture is coming to see me on Monday and said he has halved tsh levels within one session, but that being on levo will be counteractive to the acupuncture. Bit confused, any thoughts?