Your username probably has vastly increased the likelihood of Akismet mistaking you for spam.
In my opinion this is a pretty common problem (this is the second thread on this problem today, and it's happened to me at least half a dozen times). The solution is to stop commenting on other blogs until Akismet learns you're not spam. The way to teach it is to un-spam your comments on your own blog just as you have been doing. If you continue to comment on other blogs in the meanwhile, it interferes as they never do unspam you and Akismet sees you saying NOT spam but them apparently saying YES spam. Comment only on your own blog and un-spam yourself there. When you see a comment of yours get posted right away, you know that you've trained Akismet and you can then go comment on other blogs.