Hello. Your Vit D is low. Not insufficient yet, but low! I would start taking at least 2,000 a day to stop it from going lower. Actually if you want to take 5,000 for 6 wks and then drop it to the maintenance dose of 2,000 that might raise it a LITTLE. You cannot absorb calcium without enough Vit D or magnesium. Your Vit D3 and magnesium ratio should be right also. Symptoms come on once your Vitamin D drops below 50. It should be kept up for optimal health. Also, your ferritin is also very low! Have you had your iron checked? Usually when your Ferritin is low the same goes for iron and that causes symptoms as well.
Please also make sure your GP (assuming you are UK based) is aware of the BCSH guidelines on treating a folate and B12 deficiency - especially the summary and also the treatment protocols on p8
Please also go armed with this alert on the dangers of treating a B12 deficiency based totally on numbers in a B12 serum test - the serum test is not a good enough guide and your GP needs to look at symtpoms as well
Pernicious Anaemia - one potential cause of a B12 deficiency - is very common with auto-immune thyroid conditions.
Whilst anaemia - macrocytosis is one of the symptoms of a B12 deficiency it is not necessarily the first one to appear ... and it is not the macrocytosis that causes the symptoms - it is lack of B12 at the cell level which stops certain crytical process that causes the problem.
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