I have your problem, was told the same by a podiatrist, got the inserts. I wear the bendable without the inserts and walk 5 miles a,day in them. No pain in knees or joints. I have the expensive inserts in my regular walking shoes and still had pain. I swear by Clarks and must have twenty five pairs of their assort. Labels. Love the MaryJanes. A couple of days ago, they showed cute pumps, now heels, that is another story.
My ortho inserts were 200 for first and 150 for 2nd. The first they made a mills of my feet, so the 2nd were cheaper. This was done at my HIM about ten years ago. Custom made that is why so expensive. This was before I started buying Clark's.