I started on 25mg of levo about 6 weeks ago (I know, stupidly low dose, but the doc wouldn't increase it until my next bloods) and have, understandably, seen no improvement. However, after hunting around on the internet, my attention has been drawn to the few other tests that were taken at my last bloods - b12 and ferritin. My b12 was 238 ng/l (197 - 771) and ferritin at 139ug/l (30 - 400) which shows as lying within normal range, so at first I thought nothing of it, but after further investigation it seems that b12 should look more like 500+??!
I've been having spells of brain fog for a while now, way before my diagnosis, with differing levels of severity (when it's been bad it's been pretty damn bad) and I'm starting to worry about any permanaent neurological damage - I'm 21 so I know this is unlikely, but then again I don't know how long I've been hypo for, so the idea that my brain is somehow underdeveloped thanks to nutritional deficiency has embedded itself in to my head
On the other hand I know that overthinking and the internet is a dangerous combination, so I thought I'd pass this one over to more knowledgeable, rational people :')
How likely is it that irreversible damage has been done? I understand that B12 injections won't be administered by NHS for a result of under 200, what would be my next best option? Also, I want to ask for a more conprehensive blood test when I go back in a few weeks so I can get a proper understanding of any deficiencies taking priority - what should I be asking for?