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Hi everyone-

As a result of my last question regarding Vitamin B12 injections, it seems 
that  many of you are receiving them.  

Here's another question for you all.  Prior to starting the injections last 
week, I had my blood drawn to determine if in deed I did have a deficiency.  
Today, my results showed that my levels of B12 were fine.  The blood was 
drawn prior to my first injection.  I felt great for about 5-6 days and today 
(7 days later), I feel like I have been hit by a truck.

I talked with the physicians nurse and she didn't think that this Dr. would 
write an order for my local Dr. to administer the injections because the lab 
work didn't indicate a deficiency.  If he did, she said it would only be 
monthly.  I really feel that initially I could benefit from weekly injections 
and then increase the intervals.

Question:

•  What information can I give to this gastro (from University of Illinois 
Chicago Hospital gastroenterology department, which happens to be 7th in the 
nation) to persuade him to change his mind?

•  I take a multivitamin that has more than 100% RDA of Vit. B12 needed.  It 
seems that somewhere I read that blood levels taken are not good indicators 
of deficiency, but instead you can be deficient in the muscles, etc.  Any 
information in regards to this would be great too.

•  Also, Im very active.  Im training for a triathlon.  I exercise every day 
except for Sundays.  My activities include strength training 3 times a week, 
daily cardio (step  machine, running, elliptical), spin class 1-2 times a 
week, water aquatics (great for joint pain, 2 times a week), and swimming 
laps 3 times a week.   Could this amount of activity require a greater demand 
for the vitamin B 12 or could it mask the deficiency?  This gastro knows that 
I exercise, but he wasn't interested in the intensity, duration, etc.

Thanks for your help.

Liz

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