I hate to disappoint, but it doesn't really mean anything in particular. It has the "loose" meaning, "it becomes", but normally there has to be some topic that is being discussed.

As a feeling "돼다?" This is originally 되다, as an adjective (Korean state verb) unlike the normal verb 되다. And that adj. 되다 means 힘들다. Uncommonly used expression.

It could be used a million ways.