Made it back to the cold climate and my swelling did go down. I naturally have large veins as I do workout regularly. I am going to the doc here just to be sure, but I would like to think it has to do with a combination of the things already mentioned. A couple of years ago while diving in Little Cayman, I had purple/white fingers that tingled after diving. It was called Reynauds (sp). It was the only trip that I had that one. Then, last year in Belize I had a knuckle swell after a night dive. The pain went away but knuckle is still a little swollen. This year, I had an extreme vein bulging where a nurse had stuck a needle through my vein several years ago when taking blood. The rest of the veins were very prominent. The last 3 years have had something happen with arms/hands/fingers. Makes me wonder...........