Hi I've had fatigue for a long time now and recently found out that I had low serum b12 back in 2012 that wasn't treat. (I also had a low serum level in October this year and no b12 tests between these dates)
In May I purchased a multi vitamin spray that only had 6ug of b12 in it but 400ug of folic acid.
I used it until the end of June when I felt odd and more tired so I took a break then used it a few times in July then stopped it.
At the end of July I was incredibly fatigued and experience my first ever ocular migraine then I get an aversion to bright light and eventually to noise too. In August after a long brisk walk I take to bed for two weeks and my heart races every time I stand up. Some time after this I notice a burning sensation on my right thigh that's still here now but it's more like a strange numbness with occasional pulsing little shocks.
Is it possible the folic acid in the spray converted too much of my remaining b12 and resulted in how I was feeling?
I've now been advised that folic acid is bad before b12 levels are raised but didn't know any of this before joining here.
I'm tying to get a grasp of what went wrong?
I'm still trying to get b12 from the Gp (since October when I get a serum b12 done privately that comes back at 156pg but the gp follow up test is 314pg.
Yesterday he referred me to a doctor in the local hospital and said it'll likely take 6 weeks.
I'm currently using sublingual methyl b12 and not taking any b9/folic acid because I don't know what my true b12 levels are. (When I began I was using the multivitamin spray with the folic acid in but stopped it after advice on here about the folic acid before b12 injections) My mood and light glare have improved nicely but I still have the numb/burning thigh and now tingling legs.
I'm still very fatigued and the tinnitus I've had for years is ever present. I also lost 2 1/2 stone since July but that's mainly from before I started the b12 as I lost my appetite and had terrible feelings like anxiety. Since using the b12 spray my appetite has returned and my anxiety level is back to normal (in fact I'd say it's improved beyond normal). The fatigue is the biggest issue.
My private test in October showed low serum b12 but normal active b12. (Long shot but could the folic acid lower the serum but raise the active if you were chronically low in b12?)