I had blood drawn about 2 years ago when it first happened, & a vein lump occurred. When I brought it to my primary care physician's attention, he said, the lump would dissipate in a short time, & that it was nothing to worry about. It's been about 2 years now, & I have several lumps all occurring shortly after blood is drawn. I have had issues with my health in the last 2 years - kidney disease, high blood pressure, high cholestrol, 6 mm gall stone stuck in the neck. What can cause this? Can it be serious? Should I see a specialty doctor, like a Vascular Surgeon? Is my blood too thick? What should I do?