Lingering cold symptoms, especially the cough, which doesn't seem to be getting much better. And the cough tends to keep me awake at night.
Then there's a slight case of ear crud, which I'm hoping won't develop into a repeat of the Great Omnibus Ear Infection of 1999. (I don't remember whether that followed on from a cold or was a standalone thing.) The current low-grade crud leaves me disoriented a lot, especially combined with lack of sleep.
So, lack of posting is mostly the result of lethargy, not of being busy with productive stuff. On the other hand, if I were feeling better, I'd be busy with productive stuff; there's plenty that needs doing.