Is an insufficiency vein test necessary?

Sitting for a long time causes severe leg numbness.
At first, only one leg was affected, but recently I have also been experiencing numbness in the other leg.
The symptoms used to appear only occasionally, but recently they have been occurring frequently.
Sometimes I wake up with a cramp in my leg. It can be so painful that it's difficult.
Some capillaries are also visible.
Is it varicose vein symptoms?
Should I visit the orthopedic department for the examination?

Are there any varicose vein-related tests during a health check-up?