Saw your post on the public wall. Please note that you should not use the large Activity box on your own profile page. By doing so, you essentially send a message to yourself. Use that area on another member’s profile page to send a wall message to that person. Copy your post and start a New Discussion from the Home page.
Notifications do not show YOUR posts. They notify you of posts to your wall, replies to your wall comments to others, private messages, etc. You set up your notification preferences in your profile. I will send you a private message with a link for you to read.