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Disheveled is rather natural way of looking when one is unwell, my question here is about going that extra mile to hide how you're actually feeling from others.

That would entail leaving the house :P. I shave my head if it's been a week before seeing friends. I try to tell jokes and make people laugh. Putting consideration into trying to help everyone have a good time since I know it feels good to be welcome and aknowledged.

I'm not generally one to express my feelings of discontent unless doing so would remedy them. Which usually isn't the case since people too often respond with sympathy rather than kindness.