
First, an explanation of this common condition: Veins have tiny valves to control the flow of blood. When these valves are damaged, the veins can become engorged with blood, swollen, and twisted - that's what causes varicose veins.
Your discomfort could simply be the normal muscle fatigue from exercise. Or - if you feel it right near the varicose veins - it may be related to them. If so, you certainly could try using a foam pad or thick sock under the ankle weight to see if that helps. If it doesn't, talk to your doctor to learn if your varicose veins could be treated.