Perna is absolutely right. Our skills may become rusty, but we'll never lose them.
How do we know if we're ready again? Well, are you bored with staying home? Do you wish you could get back into the work-force again? Would you feel better about yourself if you were bringing home a paycheck? Is your self-esteem taking a "hit" by not working? Is your health at a place where you are ABLE to work again?
Ask yourself these questions -- then YOU can decide if you're ready.

I would go back to work again in a heartbeat if I was physically able, but I'm not. My spine totally fell apart.
I wish you the VERY best. Let us know if you go back to work, and what kind of job you found, okay? I'd REALLY like to know!

God bless and BEST of lucik! Hugs, Lee