I just read,
I Had Brain Surgery, What's Your Excuse by Suzy Becker,
http://www.amazon.com/Brain-Surgery-...dp/0761124780/ and she's a writer/illustrator and lost her ability to talk, write, use numbers, draw, etc. for quite awhile and did not "feel herself" and your post reminded me of her and the book.
I think things sometimes just take time. It's very frustrating to "wait" and struggle and feel like one is just getting more messed up the more one struggles (or, at least feel like one doesn't get anywhere as a result of one's struggles).
Have you tried going in "another" direction instead of to your "usual" pleasures? Maybe now is the time to explore:
http://poetwithadayjob.wordpress.com...ite-of-poetry/