That IS wier... interesting.
I'll be watching to see what you find out.
One google result mentioned possible multiple organ failure... but I hope that's not the case
. Another mentioned possible food coloring adititives. Another linked it with liver issues.
Google can turn up interesting stuff... found one document that had interesting information.
Green skin pigmentation has been reported with Psudomonas aeruginosa nail infection, resoltion of ecchymosis, cutaneous absorption of exogenous pigment, copper deposition, posioning, sweat gland chromhidrosis or pseudochromhidrosis, acute pancreatitis, intraabdominal hemorrhagic disease, and eosinophilic cellulitis. Increased levels of bilirubin in the skin usually cause jaundice, because bilirubin is confined within peripheral cutaneous blood vessels. However, an increased level of bilirubin may cause a rare transient green discoloration when it is exreted through eccrine sweat glands.
This is more of a green sweat issue and I had no idea what a majority of it was talking about but it was still ineresting?
Also I had another interesting thought that you could rule out. Are you female? If so then like most, you probably use or have used makup in your life? Could something you have used or are currently using contain something that is being absorbed into your skin? Just a thought