Wow, this is a touchy subject for some isn't it.
Even though I have personally had lots of unexplainable experiences in my house, I would not go as far as saying it is a ghost only because I have not seem a full bodied apparitions. I have seen a mist that looked like smoke or haze though. I know something is going on because it happens too often, just not sure what it is. Maybe trapped energy from past people living here?
I do believe some people are what is known as "sensitives", myself included. And we seem to pick up on these paranormal or unexplained phenomena more than others. One experience I had with the heavy boots walking happened when only my daughter and I were in the house. She and I are both sensitives. The walking was coming from right above us and you could see the ceiling vibrating with each step above the living room. Probelm is though, there is nothing above the living room. Not even a room! The living room is an addition with skylights and nothing above. We both looked up thru the skylights expecting to see someone up there but saw noone. This happens frequently through out the house.
Also my daughter had a sleepover in October and a young lady who never slept over before experienced the breathing on her neck. It scared the life out of her and she won't sleep over any more. I don't know if this is what a "ghost" is, but cannot explain any of this.
by the way, I have recorded the footsteps and shuffling around my bedroom when I left a recording device going and left the house. No one else was home, kids in school and hubby at work. It is true some people will not believe no matter what. I played the recording for my husband who kept saying he couldn't hear anything and then when 5 other people said they clearly heard the sounds, he confessed he did hear them but thought the noises were cars outside. Funny I didn't know cars can sould like footsteps shuffling around. He simply would not accept that "someone" or "something" was walking around our house when we are not home.
I came in abruptly one day thru the front door and think I scared whatever it was. I distinctly heard "it" running up the stairs to the bedroom. This was another time I almost called the Police but knew no one was in the house because I have an alarm system and I had activated it before going out. Anyway, above my bedroom (the room we hear the most activity in) is the attic but it is completely sealed closed. Not sure why but it was like that when we bought the home. We will be opening it up this summer so I am anxious to see if we find anything up there.
If any paranormal researchers in the boston area want to come by and see the house and hear the history, send me a pm and we can arrange it. Peace, Lilly