What is the Expected Rise in Vitamin B12 Levels after Getting Injections

by Flossy
( )

My mother had b12 level of 199 dr said she was normal. But I read and found that she is low. She is having headaches,extreme fatigue,heart palpitations,mouth ulcers,crying,nervousness,and horrible insomnia. She has been given 7 weekly injections. A dr tested her mama and homocysteine levels after 4of the shots. Her results were in normal range. How long does it take for the levels to normalize? Could the 4shots have altered the results? What is the normal increase in b12level after 7 weekly shots? So far we can't get a dr to retest the b level. This has been the worst experience with drs that we have ever had !