Hm.......didn't realize that B12 is helpful to 'pins and needles' can be neuro. related....I have them since the I was diagnosed with ME/CFS 14 yrs ago. No sure if it is a symptom of hypothyroidism and vitilgo though, (I have both), since I've only been diagnosed with them this year.
Have a good Memorial Day weekend.
Kit
All of your issues are autoimmune disorders, so yes, they can be related.
BTW, B12 is great for the neuropathies that are the cause of the tingling in both of these. It helps to repair the nerve damage. That's what my endo had me take.
It can be a symptom of both diabetes and hypothyroidism.
I also forgot to mention i have iron deficiency anaemia.