Well, you need to get some blood work done.
Find out what your level is.
Oral products work just as well as the cyano in the injections.
Oral comes now in methylcobalamin, which is the activated form.
Some people cannot handle the cyanide in the old synthetic form used in the injections.
It is possible you have developed some cardiac problem? That
should be evaluated. It might be independent of your B12 issue.
Here is a B12 information thread with all the medical data on it.
http://neurotalk.psychcentral.com/thread85103.html
Oral can work as well as injections. But one has to take it on an empty stomach to work properly. Presence of food will absorb it and prevent it from getting into the blood.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.