Fox,
5mg per day?
You could try cutting the 5mg in half if you are getting that size as the original pill. They do have a 2.5 dose for daily use as well.
Talk to your doc, but my thought would be to go to every other day or go to 2.5mg for a first check.
I had enough trouble with it that I had to stop during the week while I was doing RT (you can't move on the table, and the back pain was "just enough" to make me want to shift), but I would take a 10 on Fri & Sat nights to keep up some sort of continuity.
Also, if you are taking it at night, try shifting to first thing in the morning.