is there a couch somewhere, you could always just put your legs up at lunchtime, and meditate/rest with your eyes closed?
I'm only 26 weeks and am well and truly over work - but then I was over work when I was about 12 weeks!!
Working up to Christmas, then leave, but also finding it really difficult to sit for long periods - I take the longest walk to the water cooler, toilets and anywhere else I can walk to.
Definitely talk with your boss about taking work home, or working longer days (when you can).

