I'm reminded of an incident years ago when an employee in another department had been hospitalized for several weeks. The day he was coming back the boss said in a department heads meeting that he was still recovering but was returning to work. It was totally up to the employee how much or how little he wished to reveal & to whom. Health issues were personal business not for public consumption or discussion. This was a place of business & professional behavior would be maintained. His department head enforced it. So I d say don't tolerate it. Simply say I'm still recovering & stare them directly in the eyes unapologetically.