Where should the varicose veins go?

Lately, my legs feel heavy, numb, and tingling only in the evenings.

I think I have varicose veins. Which hospital should I go to?

They say they are doing stretching, but it doesn't workㅠㅠㅠㅠ

My legs swell too much every night, so I can't sleep properly and I feel weak in my legsㅠ