Hi 🙂 what kind of job do you do? It all depends on that and how quickly you recover. Are you having overs or unders? I’m having overs, I work in an office, my operation is on a Tuesday and I’ve said I’ll be back to work on the Monday after, but if I need extra time off they’ve said its fine. I would tell your manager, because they may need to make special arrangements for you or take things into consideration before asking you to do certain things. People will probably notice anyway but if I were you I’d tell your manager just from a safety at work aspect 🙂 xx