It's natural to be worried. We always worried about income and savings. If the calculators day you're ok, you probably are. Nothing is 100%. There could be scenarios that would wipe out everyone here. They just aren't very likely.

As Sutton said, it may be worth a consult with a fiduciary. ACA and irmaa are things to be aware of.

You may also be eligible for workman's comp of your issues resulted from your job. Worth a look.

You and us were in similar situations. We had some health scares, too. It drove home what another poster said: your health will be fine until it isn't, and then it's too late. Coming up two years retired. Don't regret it for a moment. Even a boring day retired is better than going to work. If you love your job, then you do. Maybe don't retire. I liked mine, but I prefer being retired, traveling, sleeping late if I want, puttering around the house or garden, etc. You have to decide that for you.