Lethargy

...the quality or state of being drowsy and dull, listless and unenergetic, or indifferent and lazy; apathetic or sluggish inactivity...

Don't know if it's the weather, or if a bug is attacking me.

But somehow I found enough energy to get to the GJ's 25%-off sale, and buy what is probably enough wadding to keep me going until after the next sale (and maybe one or two other things - like a few $1.50 FQs).