I have bad varicose veins in my legs,so maybe that plays a role in my problem. whenever i bump a vein in my hands,wrist,foot or ankle,the vein swells up really bad and is extremely painful for awhile. It then turns into really bad bruising all around the area. last night tossing a volleyball around it just barely tapped the bottom knuckle on my hand and it did it. What causes this? And is it anything i should be concerned about or is it just normal,i dont know anyone else that has this happen to them,that is why i wonder what is going on. thank you.