>You might have a B-12 deficiency.  Take B-12 pills or something
>guaranteed to have B-12 in it, like raw egg yolks until the symptoms
>clear up.

I was tested for B-12 twice, and both doctors said my level was OK. I
remember somebody telling me the blood test were completely irrelevant,
because the level fluctuates so much. I don't know whether this is true or
 not.

I am not for the egg yolks. What are good vegan raw sources of B-12?  I am
eager to give this possibility a try.

>Too much fruit can also cause B-12 deficiency (or too much
>vitamin C for that matter).

How so? Any fruit or just sweet fruit?

What is too much vitamin C? An orange juice a day, or you are talking about
synthetic sources?

>Do you suffer any painful nerve sensations in the extremities?  This is
>another symptom of B-12 problems.  Fasting would help too.

Thanks for asking this. I don't experience pain, but I feel a tingling
sensation in different postures. Also numbness.
I have fasted twice, trying to solve this problem, but it didn't help, and
the second time I lost muscle and weight I haven't been able to regain.

Last question: other than a B-12 deficiency, what else could be causing my
constant weakness? Thanks for your help, sir.

Saludos cordiales (cordial greetings)
                                        axel