I've got the blues

It's possible.

I don't think I have heard/seen it very much in recent years.

Thank you, FJJ.

Do you hear/see the other three?

I hear ''I'm really low"' at times. I don't hear the other two much.

HUBLOTIs it possible to say "I've got the blues" as an alternative way of saying "I'm really down," "I'm so blue" or "I'm feeling blue"?

It's possible to say it, and you'll see it in print, but my feeling is that anything with "blue" or "blues" is somewhat dated, something my grandmother might say. I think the heyday of the blues ( music) was nearly a hundred

Thanks a lot for your replies, FJJ and CJ.

What would you use in place of "blue," CJ? Do you say "I'm really low" or "I'm really down"?

HUBLOTDo you say "I'm really low" or "I'm really down"?

No. Fortunately, I almost never have occasion to describe myself like that.
I suppose 'depressed' is the word I hear most often.

Helen is feeling depressed.

CJ