Drawing a blank

I wonder how many people blog without having anything they really want to write about.  I’m almost there; I desperately want to write (or rather, rewrite) but I can’t get my head around anything.  It’s my fault, too.  I haven’t exercised in two days, and I’m suffering from endorphin withdrawal.  I’m going out for a walk at lunch time, so hopefully that will get the Muse in gear.  She dozes off if I don’t exercise regularly.  My bad.