Jellies that have battled depression: have you found that good days are often followed by a "crash?"?

When you are depressed, and you have a good day and feel your mood has lifted, do you often or usually find that the next day (or even the next few hours) that you are even more depressed?
It seems to me that whenever I feel a break in my depression that I have a major dip afterward, not unlike a caffeine or sugar crash. Is that common?