I know what you're saying, I get the same satisfaction when I'm super productive and get a lot of things done. To be frank, I never thought of this as a reward

I know what you're saying, I get the same satisfaction when I'm super productive and get a lot of things done. To be frank, I never thought of this as a reward but it definitely is one. It's also something that you're not able to get in any other way. Do you also experience having a sluggish day after a day that you were incredibly productive?