Suspected varicose veins

My legs often feel numb to the point of being serious.

I'm in a job that involves sitting, and my legs swell up when I sit.

My leg is numb and tingling.

On days when my legs go numb, I can't even walk properly ㅠㅠ

There are many cases where I wake up because of a cramp.

I went to the hospital a few years ago suspecting varicose veins, but there was nothing wrong. Should I go again... ㅠ