I’ve had this in the past and the key for me has been to find activities that are enjoyable and restful. So I can look forward to doing them while also recovering.
- Reading
- Walks with my wife
- I’ll take my bike with saddle bags over to a nearby road and fill a trash bag or two with trash
- Cook more
- Some other hobby or activity you can do while sitting or being generally slow moving.
- Coding
- Learn a language
- Journal
- Meditate
- Stretch
- Watch a TV show
- Do household chores
- Call a friend/family member
But as @Brennus said, I think the best thing for people with some anxiety or other thing that makes it hard to ‘do nothing’ is to find something else that is still ‘doing something’ but isn’t hugely physically active.
For me, reading and doing light chores have been big ones. Sure vacuuming or whatever else maybe isn’t as restful as sitting on the couch but it still is more restful than going on a bike ride. And it has the added benefit for me of getting something out of the way that has been on my mental checklist for a little while and making my house/room/whatever cleaner and more enjoyable to be in.