I had unders on 5th June. Couldnt move much on the first day. But like Hannah said once I figured out moving is helping I tried not to sit still. The more still you sit the more painful it is to stand up. Im 3 and a half weeks in and I love them, still get little tightness and pain in my right one occasionally. They are changing every day. I get to have my first shower tonight and I could not be happier today :). Good luck, I did wonder if the pain was worth it the first few days, and it is worth it. Do take a week off work as even after a week, I found that I was walking weirdly, and the belt that is pushing them into position, was making my shoulders sit really high up, so I felt uncomfortable. But the pain is def bearable. 🙂