I also have to apologize for my lateness in replying. Things can tend to get a little bit slow around here at times, some topics really pick up while others don't always. Please don't take offense if people are late in responding.....we're always interested!
Looks like you've got some great pictures there! I always tend to take the camera strap route when I see pictures of vortexes...but these actually look genuine to me. I would think if it was a camera strap, it would look the same in all of the pictures, while the first and third are very similar...the second one looks completely different from them. I also notice that the bottom left hand corner of the first and third are transparent. Would a strap do that? Of course there's always a piece of hair, but I honestly don't think that a hair would look that thick or solid.
I have to agree with Connie as far as remodeling or construction stirring things up. A house doesn't necessarily have to be "haunted" to have some activity. Could just be someone passing through taking a peek at what was done with the house.