I would guess there have been times where I look off.....even when pulled together. I've also seen people in the office who it's obvious are having a bad time. Some people probably do hide it better than others. I always do my best to at least appear put together but I may have failed a time or two. I'm really ensure.

In this situation, I would have disclosed that I'm a patient. It means nothing...you could be there for something like grieving a pet....people don't know the reason you are there.