@stridor I also am a mutant. I'd love to know what you've found out about TCN2 (I am TCN2++ and TCN1++). Did you have abnormal blood work that led your doctor to Rx daily injections? Dr. Ben Lynch of Seeking Health addresses TCN1 and 2 in this podcast. (Somewhere else he said that a double mutation is big trouble, but of course I can't find that reference.) I tried liposomal Methyl B12 as per Lynch, but noted no difference. Any other TCN++ out there? I'd love to hear how others are addressing this. Thanks!