Internet Friendly?

I have pondered putting a picture of myself on the blog. But then I remember terrible stories of girls heads being pasted on bodies. I am so worried someone will photoshop my head on some other picture. Am I being paranoid, or realistic? Or there are those stories of crazy men stalking women using the internet. Would putting my picture up just make it easier? Not that this would happen, but the possiblity makes me question the how safe it is to post a picture. I probably won't until I am in my forties, not that anyone really looks at my blog anyway, but at least I will feel safe.