When Is Writing Work?

I get this question asked a lot: Do I ever get sick of writing, and/or does it ever become work?
The answer is messy and convoluted . . . pretty much like the writer brain is.
I don't think I've ever gotten sick of writing during the drafting phase. Sure, I've stressed myself out during it, trying to get it done or worrying that the story won't turn out right, or that maybe this is the time I'll fail at writing a whole book.
But as for actually getting sick of writing?
Absolutely not. Drafting...