Quoting Javi's Mami*[Bazinga!]:" How did you know or find out if you had depression? Whether it be PPD or just regular ol' depression. ... [snip!] ... a few years ago and I'm not sure I ever stopped :/ I can't tell if I'm actually happy or if I WANT to be happy so I fake it? "
I think if you think you might have it, you probably have it at least mildly. I thought I might have it for 2 years, and I definitely did. I did not realize how extremely bad it was until I got treatment. When you are depressed, sometimes you barely notice until you feel how you should be feeling.