My Levo was reduced from 150 to 125 about two months ago, even though I still had symptoms. The TSH and T4 test showed that I was now hyper. When I was retested I was told that the levels were better but I should remain on the lower dose for a further six weeks and then have a further test. At the GP appt I asked for B12, Vit D and ferratin. I phoned up this morning to see if the results were back and am now being sent for the further tests above. I was advised to do this as soon as possible and am now really worried that I may have diabetes, although I have no symptoms. I have read that sometimes blood sugar levels can be affected by the thyroid but can't really find out much more. Can anybody out there help please???