I understand! I had 4 days of miserable depression and anxiety earlier this month; I was planning to tell my pdoc that this was IT - I need ECT. I cannot live with such depression and anxiety. I walked into the grocery store feeling like that.
Did my shopping wondering how I would make it through the remainder of the day. I left the store and, as I was walking to my car, a switch flipped. I mean that was exactly what I felt in my mind. Within a few seconds the depression lifted, the anxiety lessened.