I'm sort of in one of those myself right now and have had them in the past but never for more than 3-4 months. I always wanted to "retire" so I could quilt--sounds like you quilted and then "retired" so I understand why you don't want to quilt some more. Maybe try a new challenge--painting, photograpy, something totally different for awhile and see where you end up. You may go back to quilting, you may find your interests have totally changed.
I'm going to do the Farmer's Wife Quilt Sampler with this group so I'll be held accountable for weekly blocks. I hope this is the "kick in the a$$" I need to get out of my slump.
Good luck--just enjoy what you do and do what you enjoy. Otherwise, it's just another job.