Hi Tina,

back, and

for your encouraging and informative report!
What kind of doctor does food sensitivity testing?
Many of us here are taking B12 (
methylcobalamin) sublingual, 1mg - 5 mg/day (empty stomach at least an hour before ingesting any food). Cheaper and easier than injections (not to mention severe trypanophobia

). I would think the other supplements you mention would be easier orally as well; is there some specific reason you're doing injections?
A lot of us are also taking
Stabilized R-Lipoic Acid (100 mg. once/day) w/
Acetyl L-Carnitine (500 mg. 2/day) and/or
B5 (pantothenic acid 500 mg. 2/day) to alleviate burning pain of PN. An additional effect RLA has is helping the body utilize glucose, improving blood sugar control and raising energy levels.
HTH,
Doc