If you have any list them and discuss with your GP. Ask for investigations into B12 deficiency/pernicious anaemia, you possibly need B12 injections.
Don't start folic acid until B12 investigations have been done, folic acid masks signs of B12 deficiency.
VITAMIN D 30.3 800IU D3 only
800iu will never raise your level. You're just 0.3 away from the level where you would be given loading doses - see NICE treatment summary for Vit D deficiency:
"Treat for Vitamin D deficiency if serum 25-hydroxyvitamin D (25[OH]D) levels are less than 30 nmol/L.
For the treatment of vitamin D deficiency, the recommended treatment is based on fixed loading doses of vitamin D (up to a total of about 300,000 international units [IU] given either as weekly or daily split doses, followed by lifelong maintenace treatment of about 800 IU a day. Higher doses of up to 2000IU a day, occasionally up to 4000 IU a day, may be used for certain groups of people, for example those with malabsorption disorders. Several treatment regims are available, including 50,000 IU once a week for 6 weeks (300,000 IU in total), 20,000 IU twice a week for 7 weeks (280,000 IU in total), or 4000 IU daily for 10 weeks (280,000 IU in total)."
Each Health Authority has their own guidelines but they will be very similar. Go and see your GP and ask if he will treat you with the loading doses as you are so close to the limit. Once these have been completed you will need a reduced amount (more than 800iu so post your new result at the time for members to suggest a dose) to bring your level up to what's recommended by the Vit D Council - which is 100-150nmol/L - and then you'll need a maintenance dose which may be 2000iu daily, maybe more or less, maybe less in summer than winter, it's trial and error so it's recommended to retest once or twice a year to keep within the recommended range. You can do this with a private fingerprick blood spot test with City Assays vitamindtest.org.uk/
Your doctor wont know, because they are not taught nutrition, but there are important cofactors needed when taking D3 as recommended by the Vit D Council -
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 helps D3 to work and 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
The fact that you have Hashi's will have caused gut/absorption problems which has led to these dire nutrient levels. You need to address the Hashi's as advised in previous post, and also address the gut/absorption problem. Please check out SlowDragon 's post near the bottom of this thread, it has lots of information and links which will help
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