Sometimes I really hate lines (as in, do not cross)

Question. Where exactly is the line between stating facts, even to the point of stating the obvious, and complaining? I find that I have the habit of doing both, but I really have no idea when my telling people how things are going with me crosses over into complaining. I am concerned in that I often have more news of the negative than I do of the positive. Is there any way to state crappy state of affairs without it being a complaint? Must I strive to suffer silently in most things? I'd rather not, but then again, I don't really want to be a complainer either. I find myself rather in a pickle. An unknowable pickle at that.