As a sufferer of depression for a good eight and a bit years, it is rare it will trigger a panic attack.
Last time I had one, it left like walls were closing in. My chest was tight, heart racing and palms sweaty. My body temperature rose through the roof and I was shaking beyond belief, though breathing was weak, if at all. The room suddenly felt dark, though it was light, and all I could think about was how I wasn't breathing, how painfully quick my chest was thuddong and the stress in my head. It laster for around fifteen minutes, but it felt so much longer...