I am thinking about this. Candida also colonizes the GI tract.
There are various --in fact a zillion--- Candida therapies, from natural,
to RX using nystatin and Diflucan. (the latter two drugs need a prescription).

Here is one test: http://www.betterhealthusa.com/public/159.cfm
also:
http://www.cfs-recovery.org/research.htm

My foot pain was mostly burning...80%... with some arthritic pain tossed in for some days. The burning was blocked by AlkaSeltzer with aspirin, and also thiamine, for me. Both of these interventions, are used for burning/flushing caused by alcohol dehydrogenase deficiency (thiamine) and the burning flush from niacin. So I would guess if you have burning tingling that is triggered by daily habits, and gone on others, it might be a clue.

Traditional doctors pooh pooh GI Candida. But others do not. The typical Candida starvation diet is no carbs, no alcohol, no sugar for at least two weeks, followed by some supplements, like caprylic acid.

The burning has dramatically gone away... this week especially.

It would be astounding if some of the PN we have is Candida induced???!!!

For now take the Thiamine. If there is some improvement, I think it warrants testing.