Early symptoms of varicose veins?

When you see TV commercials

They say that swollen and tired legs are caused by poor venous circulation.

That's how I am. My legs swell and tingle.

In summer, it can be especially severe, making it hard to fall asleep.

Is this a precursor symptom of varicose veins?

How should I prevent it?

I'm curious about what methods are available for parking fees.