I will remain private about the condition of my upper respiratory system, as I know it grosses some people out.
Tuesday night, wrote about 170 words, then collapsed. Yesterday, as I said, wrote nothing; rearranged some bookshelves and boxed some books I don't need handy; and attended the first half of rehearsal, though I couldn't sing. I was too tired to stay for the second half, and also starting to cough, which would have been disruptive.
I seem to be "stuck" on the writing in the sense of "cogitating below my awareness." At least, that's my hope. It's always been the case before. I plan to go easy on myself tonight, maybe read some more research material on Friday. If I have no brain by Saturday morning, I will write something anyway, scene-setting or something.