Part of the show Big Bang, Ghosts & The Paranormal
I grew up in an incredibly old house. Our dog was the most placid animal, and yet it would run at the fastest pace possible up the stairs from the ground floor, to the third floor and visibly shake. Also at other times I felt like I was being kicked in the back although there was no-one in the room. I also see a 'glow' in my present house.
Animals do react to things that we are unaware of, and are very sensitive to paranormal activity. Regarding the glow, try and get a photograph of it, and we can analyse it.