I think you were closer in the beginning than you are now. I don't agree with your chiropractor's assessment about your HCL levels. Low HCL leads to low levels of calcium, B12, magnesium, zinc, iron, etc. Nutrients that you tested low in. Low HCL also plays a role in constipation via its effect on liver/gall bladder and lowers protein digestion and absorption, which it appears you have difficulty with. Slow bowels leads to excess fermentation that causes gas and bloating.
Undecyn is not the same as undecenoic acid, and tends to be very ineffective with candida - http://candidaplan.com/blog/1101/undecenoic-acid-or-calcium-undecylenate/
If you'd like an organized, time-proven approach OF 23+ years, I would recommend the Candida Plan - http://www.candidaplan.com.