Take that depression screening with a grain of salt - and talk with your health care providers. I tested positive for "moderate depression" when I took it just now and my health professionals agree that I am not depressed at all; that I am just recovering from a brain injury. I have had moments of depression over the course of the last twenty months... but it is not a typical feeling for me. Many of the symptoms of both are the same. Some people have even been accidentally diagnosed with depression instead of a brain injury and the recommendation of exercise made them worse until they were properly diagnosed.