B12 deficiency recovery

Hi, I don't know much about B12 and was hoping for some advice really. Recently diagnosed with a B12 deficiency after 9 months of inconsistent and relapsing symptoms that lasted about 1-2 weeks. It started in February with spells of vertigo every 2-3 months, until in August I was finally diagnosed with B12 deficiency. So I started having injections, and after about a week of loading I felt better. After the loading I was told I wouldnt need an injection for at least 2 months, but less than a month later and I became really ill again. Last week I could hardly walk and was dragging my leg foot, tripping over, choking on food, numb all over and laughing hysterically at times. What on earth?! Anyway I went back to my doctor who has checked my levels. I just had my results today; apparently my levels are normal and the loading was a success. I started feeling better a few days ago, and my symptoms seem to be improving.

I'm finding this very confusing and I'm terrified its going to happen again. What could be causing these relapses if not low B12 levels? is it possible I need higher levels than some people, or that I am doing something that causes my levels to drop and rise? I certainly dont see any pattern, but that doesn't mean there isn't one. If anyone has a similar experience I'd appreciate hearing about it. People are getting annoyed with me for being so confused all the time and think I'm a hypochondriac, especially as my levels are now 'normal', and some days I am almost fine. I don't get it, I mean surely I should be becoming more deficient than last week? yet I have my appetite back and not dizzy, eyes are better, though numbness is still very much a problem. This is driving me nuts and all the doctor does is offer me antidepressants. The entire thing is enough to make me depressed.

[oilmart]

You could possibly get a sublingual B12 from the health shop. What is your level? I think normal levels range from 200-900 if I remember. Dont forget this is only the level in your blood.

[Redilma]

When I called up for my results they said my level was 2000, which doesn't make sense :\ however I intend to meet with my doctor later, maybe he can explain the results to me. If not I have no idea what I'm going to do. I'm not sure how much longer I can go on like this, I need to work and I live alone, so must look after myself. It's extremely challenging...