The 26-year-old defender has told BBC Sport: “My life has turned from having the best job in the world to having to go and do something every single day that I don't want to do. Everyone thinks about injury as a thing that takes away your physical ability. Everyone will talk about the fact that I missed the World Cup or these real tangible things that come along with it. But it's not even like I'm impartial. I actively don't want to be in this situation. It's not the easiest journey.”
Williamson added: “When you're a professional athlete and you have that stimulus all the time, you have that pressure all the time. All of a sudden no-one really cares what I'm doing. And there's no pressure on me to do anything at any point in my day. Everything's at my own pace. Everything's on my own terms.”