Boy - I bet you beep going through airport security.

Good to know you are recovering well.
I was threatened with multiple fusions (L3, 4, and 5) back in 2003, but finally found a physiotherapist that could teach me to build up my core strength even when in pain.
It worked, and I am now pain free and can do (almost) anything I want.
Loosing about 30kg (66 lb) helped as well.

Keep up the good work.

PK