What do you think about my blog?

It looks good, pretty basic, but solid. I would try to cut some of the post sizes though. If someone doesn't know you and comes to your blog, there's a strong chance that they won't read everything.

It seems like you have some interesting stories, so try to add some of those. Since you went to a lot of Dead shows, maybe you could add some bootlegs or some live songs on your blog for people to download?

Good luck with your illness. I know it can be very difficult sometimes.