It looks like you needed to supplement a maintenance dose of iron after your infusion in 2016 to maintain levels. Deficient ferritin, MCV, MCH, Haemoglobin, iron and low transferrin means you have iron deficiency anaemia again. Hasn't your GP prescribed iron or another iron infusion? If you are prescribed 3 x 210mg Ferrous Fumarate take each tablet with 1,000mg vitamin C to aid absorption and minimise constipation.
Vitamin D is deficient and 800iu is totally insufficient to treat deficiency. Your GP should refer to local guidelines or the NICE CKS recommendations for treating vitamin D deficient adults cks.nice.org.uk/vitamin-d-d... My GP prescribed 40,000iu daily x 14 followed by 2,000iu daily x 8 weeks which raised vitD from <10 to 107. Vitamin D should be taken 4 hours away from Levothyroxine and T3.
VitD and iron need to be taken 4 hours away from Levothyroxine.
If your GP has ignored the fact you clearly have iron deficiency anaemia so soon after having an iron infusion s/he is totally useless. I would write a letter of complaint to the practice manager and see another GP for proper treatment of iron and vitamin D.
Oh dear, I missed that your B12 and folate are also deficient. You really have cause to complain that your practice is not treating your vitamin and mineral deficiencies.
You need B12 injections initiated 48 hours prior to prescription of 5mg folic acid daily. Investigation needs to be done to see whether pernicious anaemia is causing B12 and folate deficiency. Symptoms of deficiency are in b12deficiency.info/signs-an...healthunlocked.com/pasoc are the experts on PA, B12 and folate deficiency if you'd like to pop over there for advice.
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