Ugh, I am very sorry about this, and self-reproachful, but it seems it was not meant to be that I should do a long run this morning....
Usually I keep most of the negative stuff that goes on in my head to myself, but I suddenly feel I am perhaps giving an ill-proportioned sense of my training and my life in general when I am so unduly rosy-spectacled about everything here!
So I will just note that though I went to bed at 11 yesterday, I didn't actually fall asleep till 1:30 or so. When the alarm went off at 6:45, I felt truly awful - drank a lot of coffee and ate a long-run-type carb-heavy breakfast of cereal and toast, which only made me feel queasy - realized around 8 that I was blearily frittering away time on the internet and that I still hadn't started writing my pages of novel quota (I have a Feb. 2 deadline, which probably will be extended by one week, but I have to write about 1500 words every day without fail in order to make this happen) - dragged myself out of the apartment and over to the cafe I've been writing in every morning only to find it hadn't yet opened, because of today being Saturday - came back home, felt the only place I could write pages was BED - wrote one page and then felt I could only write with my eyes closed - wrote a sentence or two more - fell asleep - woke up still feeling rather queasy, but more capable of writing pages - stayed in bed, wrote quota of pages - clock said nearly noon by this point.
But the pages are written, that is the important thing, and I am going to make sure to have a solid lunch and dinner today, I think I did not eat a good enough dinner last night. Will just fit in a bit of a swim in the evening. Tomorrow I'll do the one-hour swim midday and then run an easy 6 in the late afternoon (I don't think the timing will work out for a run tonight), and then I will make up the long one on Wednesday - that's the first day where I have flexible enough daytime hours.
This 16-miler (the one I did not do this morning, in other words, ARGHHHH!) is one of the three crucial long runs I have scheduled for this round of marathon training, but the 18-miler is scheduled for 2/7 and the 20-miler for 2/14, so even if I leave it till Wednesday, I'll still have 10 days between the 16 and the 18, and will just hope to do steady strong mileage in between.