Shona3 I really do wonder sometimes what doctors keep between their ears, because some of them certainly don't seem to have a brain! Has your GP never mentioned that your levels haven't improved since supplementing?
I am assuming that these results are recent and my reply reflects that.
Ferritin 17 (15 - 150)
MCV 74.8 (80 - 98)
Ferrous fumarate 3 times a day since 2013.
Dire ferritin and iron deficiency anaemia. You need to ask your GP why, after 4 years of supplementing, are your results still this bad.
I would ask for an iron infusion which will raise your ferritin level within 24-48 hours.
Are you under a haemotologist? Have you been tested for Coeliac disease? Any other investigations? Is your doctor following the guidelines for iron deficiency anaemia?
NICE Clinical Knowledge Summary here cks.nice.org.uk/anaemia-iro... - you can Google for local guidelines which should be similar - and see whether your doctor is doing what should be done. If not, tell him you wish to have the further investigations and be treated appropriately.
Are you taking each iron tablet four hours away from thyroid meds and two hours away from any other medication and supplements as is necessary as it affects their absorption? If not you need to do so.
Are you taking each iron tablet with 1000mg Vit C to aid absorption and help prevent constipation? If not you need to do so.
Ferritin needs to be at least 70 for thyroid hormone to work and T4 to T3 conversion to take place.
Folate 2.3 (2.5 - 19.5)
Vitamin B12 197 (180 - 900)
What has been said about your folate deficiency and very low B12? If nothing, then point these out.
Check for any signs and symptoms of B12 Deficiency here b12deficiency.info/signs-an... list them and show your GP if you have any.
You could pop over to the Pernicious Anaemia Society forum here on Health Unlocked for further advice. Post these results, any signs of B12 Deficiency, plus your ferritin/iron information. They may advise asking to be tested for Pernicious Anaemia, if so don't take any supplements for folate and B12 until after testing.
Folate should be at least half way through it's range and B12 should be at the very top of it's range, even 900-1000 for us Hypos.
When taking any supplements for B12 we need a B Complex to balance all the B vitamins.
Total vitamin D 40.5 (25 - 50 deficiency)
As you can see, you are still deficient despite supplementing for four years. The reason for this is because the dose you have been given isn't even a maintenance dose for someone with a reasonable level to start with. Maintenance doses generally are around 1000-2000iu daily.
The recommended level for Vit D is 100-150nmol/L according to the Vit D Council.
You would be better off just buying your own D3 softgels like these bodykind.com/product/2463-b... and take 5000iu daily for 6 weeks then reduce to 5000iu alternate days. Retest after 3 months, privately if necessary with City Assays vitamindtest.org.uk/index.html
When you've reached the recommended level, your maintenance dose may be 5000iu alternate days, or you may need less, it's trial and error which is why it's recommended, when supplementing with D3, to retest once or twice a year to keep within the recommended range.
When taking D3 there are important cofactors needed vitamindcouncil.org/about-v...
D3 aids absorption of calcium from food and K2-MK7 directs the calcium to bones and teeth where it is needed and away from arteries and soft tissues where it can be deposited and cause problems.
D3 and K2 are fat soluble so should be taken with the fattiest meal of the day, D3 four hours away from thyroid meds.
Magnesium comes in different forms, check to see which would suit you best and as it's calming it's best taken in the evening, four hours away from thyroid meds naturalnews.com/046401_magn...