I say yes.
Idk. But happiness is not a stable state and happiness is relative. When the right person gives me chocolate I might be very happy and when the wrong person does it it might be bad. But when you have a depressive mind you might regard both instances as sad ones since they only last a few moments eventually.
I don't think I can give you a good answer to this... outside of it effecting people differently, but I think happiness is a stretch in my honest opinion, I think there are joys in contentment and I whole heartedly believe that people who have had to wrestle with depression can find that. It just takes a lot though and it's not something other people can give you. But it can be done.
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