My fingers never get white so that just about rules out Raynaud's.
To give you some other info about me that may or may not help:
Since I was 8 years old my joints have hurt especially with bad weather. I usedto only use an ace bandage to help with the pain but for the last couple of years I've taken ibueprofen at least once a day, usually 2, with sometimes that not enough and will need to use an ace bandage to help. I have never been tested or diagnosed for any bone or joint problems.
I also have the Ebstein Barr Virus and many recurrences of mono. if I don't get enough rest.
I've had granuloma anulare on my foot but it was gone after topical steroid treatments.
I think I have VERY similar sypmtoms of hypoglyciemia that I control with diet usually.
Again, I have no clue if this helps or not. I couldn't find ANY pics or info about what I have, I've just been noticing this more and more on my fingers. THought they might have been chemical burns or something at first but doubt it now.
*shrugs* Thanks for the info so far

-Janice