Heya!
I apologize! I for some reason thought you just said that your post wasn't showing up, as opposed to the title of your post. It was too early in the morning! :(
If I had seen that, I wouldn't have had to go looking in the Reader! I could have just looked at your list of posts. If your post is an "Aside," then the title will not show up in the Reader. If it's a normal post, then it will show up as normal. Your most recent post is an Aside and so it goes up without the title being displayed (of course if you click on the article, it displays the full title).
If you'd like to learn more about what the "official" thought is on what the various type of posts are, you can read the help article on it right here: