Help - bad veins in feet and legs

Hi Ladies

At my midwife appointment last week, I showed her my feet as ive got purple veins appearing on the tops of my feet and around my ankles.
She kind of brushed it off and just said i need support tights and to walk around every 30 mins as I do a desk job.

I dont mean to sound stupid, but ive never worn tights - i really hate them!
Plus, because I am tall I either find I get them so big they fall down or not big enough they sag.

But anyway, what im wondering is if there is any way I can help it.
Do you think exercise would work?


Anyone else had issues with this?
They are starting to ach and feel uncomfortable!