I've had this happen ...the worst was with the niacin. I stopped that mainly because my neck and teeth hurt so very badly.
What do you think is going on with the neck??? Mine now comes and goes so I'm less worried as it seems to be repairing itself very slowly since the big outa joint thing last spring.
I've got a feeling this is related to heavy metals detoxing but can't figure out why it would settle in the neck????
Love to hear more thoughts on that???
BTW...been oil pulling for my teeth pain and man it works! I'm now pulling 3X/day with 1st in the AM- palm/olive/sesame+iodine and orgeano oil drop combination
2nd at lunch-orange cod liver oil
and 3rd before bed- coconut oil.
still have some twinges of pain but it really appears to be resolving itself