Orbs -- a trick of the light or psychic phenomenon?

I've noticed recently that some digital pics of me have come out with 'white balls' in them. Upon looking this up on the Internet I'm told by various websites that they are psychic orbs, spiritual energy if you like.

I don't know what to think of this. I feel that there must be some rational explanation as I've never seen these balls on photographs taken of me with the old 35mm cameras. Yet, the thought of orbs intrigues me. Some websites show pictures of these orbs blown up where you can make out faces inside.

I'm open minded at the moment about it all. If you look carefully in the photo above you will see an 'orb' near my cheek/chin [I'm on the right]. Although common sense tells me this must be something to do with the reflection of the flashlight in the window behind me.

N.B: To enlarge pic, just click on it.