"I Just Stress"

Today, March 13th, a grey day in San Francisco, was not a "chill" day for my roomie. She was talkin to her pal in the other room and she mentions that she is in "such a bad mood" and then she said this, which stuck in my brain: "I'm just stressed out you know? That's just something I do. I just stress."

excuse me? What now? doesn't everyone stress? Does she think that she has some unique trait that causes her to stress out? Does she realize that she is like everyone else and that we are all pretty much similar? I guess not.
I wonder if she ever will...I hope she will...