JRR wrote:
This is not easily answered, no matter how simple the question seems to be.
When I'm compelled and it's an interest, I want no interruptions and I'll go until it's done or until I pass out.
But, if I'm not compelled, then I may not care to get it done, even a tiny bit.
I guess it's a mood thing?

Just like me. It's not about mood for me BTW. It's all about the motivation that comes with genuine interest., and the complete lack of such for everything else.
If I'm interested, i wanna do it and I'm intensely into it and wanna be left alone to do do it.
If I'm not interested in the task, I welcome any interruption and can't get the task done, and procrastinate and can't focus