The first two questions on the [Burns Depression Checklist](http://www.nwmtcounseling.com/forms/ncac4.pdf) ask about (1) Feeling Sad and (2) Feeling Unhappy. Specifically, they ask how much you have experienced:

1. Feeling sad or down in the dumps
2. Feeling unhappy or blue

What is the difference between these two questions?

### References

* The BDC is from the book Feeling Good, by David Burns.