Where to start with getting help ?

I’ve always had flat narrow feet with overpronation. The ligaments on the outside of my ankle are so weak that when I lay down my feet just flop inward.

Anyway it was always something I knew about and only bothered me during extreme activity. Now after spending a week in Florida in a house that is all tile (no cushioned carpet) my feet, legs and hips are terribly achey all the time.

I thought it would get better being home on carpet. I’ve been wearing cushioned slippers inside as well but it’s interfering with all of my daily activity. I can stand long enough to do dishes with out having to sit down and prop up my throbbing feet.

Where do I start ? What shoes? Arch supports? Podiatrist vs foot and ankle ortho? This is miserable