Welcome to the forum Miranda,when I moved into my current farm house it had been sitting unoccupied for some time and I had similar experiences to yours.I believe entities or spirits take up residence when no one is around.The events slowly dwindled and disappeared after about six months,but I did let whatever it was know it was my home now so it should move on.I've felt "things" in brand new homes too,so I don't thinks it's always caused by bad or traumatic events from the past,but in other cases it most certainly is.