It seems like you have something in your house, possibly trying to get your attention. I looked at some of the pics and I see orbs, but these can be caused by dust as well, especially if you used a flash. Multiple orbs are usually dust. The most convincing "real orb" pics are ones that show the orb in motion. If you can, try taking some pics without the flash.
Ghosts can drain batteries, which could explain the problems you're having with the camera.