Sorry to hear about this. Mama Mac is right, That has got to raise a lot of feelings, many of which may be unpleasant. I hope though that perhaps this an opportunity for one less stressor and might allow you to focus more on your recovery without the concerns about how the job is affecting you and your foot.
Sign up for the Medicare as soon as you can. There is a limited window in which they will allow enrollment.
Sending hugs,