I suppose there are business connections among those 1000+, and I have a policy of never telling a business contact anything about my health (except "I'm on sic

I suppose there are business connections among those 1000+, and I have a policy of never telling a business contact anything about my health (except "I'm on sick leave", if necessary). I suppose I'm not the only on doing that, so you most likely underestimate the occurrences.