If I had never come down with ME/CFS, I would have married young to the first guy I dated, had a bunch of kids by now, and living life in a quiet frenzy convincing myself I was content in a religion that wasn't okay with me being myself.
My illness forced me to consider a different way of living, that broke me out of the cult-like brainwashing I was raised with.
Now, I'm free to be me. After a couple wild years happily single with TONS of good dating stories I'm with the love of my life. Now I'm getting treatment that addresses the core of what would have become health issues later, if not sooner. Now, I know how to articulate my emotions, how to set boundaries, and how to walk away from both people and "things" that don't work for me personally. I'm more self-aware now than I ever would have been in my old life, I'm more functional, lots happier, and I know I'm going to live the rest of my life from that angle regardless of what direction my health takes.
I'm not always this bright happy optimistic person, I mean yeah I could have maybe made the olympics if I hadn't got sick, or done something with my singing-songwriting, or right now be traveling the world. But I know I wouldn't have been as happy, as relaxed, as settled as I am now.
I'm going to stop before I get too corny. Because this illness also gave me PTSD and fucked up my life pretty bad. It just happened to also change the course of my life for the better, too. My two sisters went the route I would have gone, so I have a good picture of what it would have been like had I not become severely ill when I did. It's not pretty.