Hi Mary --
Welcome to the SCS Club! Sorry you are off to a rocky start post-op. What you are describing (feelings of intermittent/low stimulation) may be a result of post-op swelling. It could take up to 6 weeks for the swelling to subside, thus allowing the 'lines of electrical communication' to run smoothly. It is usually at that point that your rep will like to meet up again with you to tweak your programming.
Sorry to hear of those painful spasms. OUCH! But, with that sort of procedure done, I'm not surprised.
As Rae has mentioned, beings the trial worked so well for you, the ray of hope for you is grande
Best of Luck to You for a quicker and more pain-free recovery.
God Bless!!

Vanna