Is Fall a time that you have mood shifts in the past? How does winter effect you?
My Hypo is short lived as it rolls right into a manic mess and its 99% always angry, mad, annoyed at the entire world shift.
Maybe for now you could just stay on your current dose or maybe your Pdoc will bump you back up a bit? Honestly I think some people that have been on Benzo's long term will always need a low dose? This doesn't mean there is anything wrong with you its just something that helps you manage life.
Forgive me but I can't remember if you have tried Buspar or Gabapentin as an add on to your meds while you taper off benzo?