B12 Deficiency Symptoms but B12 Level is High
My B12 level test done by Dr. is 912. I have been on PPIs for 12 years and the last 3 years my feet have been getting more numb by the month as well as tingling and burning at times. It appears to me that I have a serious B12 deficiency but the test doesn't show it. In the meantime I have undergone an MRI on my back, a nerve conduction study, and have had about 9 doctors try to diagnose my symptoms. My B12 has been checked more than once and is always 900 plus.
If I have a B12 deficiency, why do I have a B12 of 900?