Am I a real life changeling? Why do I create?

I've learned from the internet that likes actually are incredibly powerful.
When I have logged on, and found that a new person liked my work, it makes my day. The rest of the day cosnists of air charged with optimism, a willingness and desire to do more good than ever. It makes me feel proud of what I do, why I do it, and who I am. It's a powerful sensation, almost like falling in love. It makes me feel content to do what I want to do, and secure in the notion that I've truly connected with another real person.
So, while it sounds crazy, this is the sort of thing that keeps me from retreating into my bedroom, and writing with a constantly aching notion that I'm wasting my time. I feel great when I see somepony enjoying something I did, because it makes me take a step back and remember why humanity has continued, fought, and laughed for so long.
We all have the ability to do some good in this world, and I was born in just the right time to avoid being catagorized as a monster, locked up in an asylum, and left to rot. If I'd have been born just two hundred years ago, I would have been called a changeling, and probably killed.
I have phenylketonuria (abreviated as PKU), a rare genetic disorder that, if untreated, would have left me with irreversible brain damage. If you look up changeling on wikipedia (the mythological monster, not the movie) and you click on section 6.1 neurological differences, you'll find that children with PKU were the source of the original changeling myth.
Now, I have a question for all of you. Does this make me a changeling?