I am new here. I was diagnosed in April this year as Hypothyroid, my TSH was 5.01 and T4 13.5. I was put on 50mcg Levothyroxine (Actavis). All was going ok until 2.5 months in, whereby I developed a shortness of breath, naturally this worried me and hence got myself to the docs, as I thought I may have been having a reaction to one of the excipients, the patient information leaflet did state breathlessness as a side effect. All my vital signs were taken. I was told everything is ok, blood pressure great at 126/79, blood oxygen 99% etc. I was then told I was having an anxiety attack, which I felt hard to believe, prescribed an SSRI and went away. I only took 2 of those pills, never again, stopped them straight away as that made me worse.
I then started to research my condition, thanks to this forum and ThyroidUK, all fantastic. The reason I believe I have shortness of breath is due to a resting pulse rate of 57, it always used to be higher i.e. more in the normal range for a man (66). I am not an athlete or fantastically fit, so researched Bradycardia, now I also know that Hypothyroidism can cause Bradycardia according to the research I have done and also vitamin B12 deficiency cropped up as well. I have had an ecg, all clear. I therefore decided it was time to have a private blood test as the last NHS showed my TSH had dropped to 2.68 but my T4 was still only 13. I had a serum vitamin B12 test done on the NHS as well, the result was normal at 321 ng/L range [180.0 - 800.0]. Below is the latest results from Blue Horizon. The vitamin B12 is of a concern as this is actually showing as low (deficient), it was serum and not the active test, whereas the NHS test a week previous stated normal, but I would still have said it should have stated low.
Test results Blue Horizon, my result followed by range and units:
Ferritin - 249.9 - [30 - 400] - ug/L
TSH - 2.52 - [0.27 - 4.20] - IU/L
T4 Total - 67.1 - [64.5 - 142.0] - nmol/L
Free T4 - 12.37 - [12 - 22] - pmol/L
Free T3 - 4.24 - [3.1 - 6.8] - pmol/L
Anti-Thyroidperoxidase abs - <5.0 - [<34] - kIU/L
Anti-Thyroglobulin Abs - 53.8 - [<115] - kU/L
Vitamin B12 - 201 - [Deficient <140, Insufficient 140 - 250] - pmol/L
Serum Folate - 16.08 - [10.4 - 42.4] - nmol/L
Can anyone assist with understanding these more, as I have been told to stop the Levothyroxine for a month or so to re-baseline, before restarting again after a further blood test. Due to the half life of the tablet, it takes a long while to get out of the system, also my TSH is still markedly dropping, so something is still working. There was a further comment on vitamin B12, "consider reducing dose >725", I don't understand what that means. As of yesterday I have started to supplement my B12 with lozenges 1000mcg a day, should I be doing this, my diet is almost vegetarian, gluten, wheat and dairy free, only eat chicken and some fish. My next appointment with the doctor is three weeks time, cannot seem to get to see him before then.
Any advice greatly appreciated.