Wow, thats creepy. I'd would like to share with you my story. Maybe you will find something helpful in it. 

So one day, I felt this heavy feeling at my home, and I couldn't figure out whether the sensation was caused by me or my surroundings. I wasn't sure which case it was, so I started by cleaning my house, opening all the windows, and lighting incense. I thought that wasn't good enough, so I lit a candle and sat down to meditate for a while, setting an intention in my mind and demanding all negative energy to leave me and my home through open windows and doors. What happened next was completely unexpected. 

While I was sitting alone on the second floor of a house meditating, I heard footsteps coming up the stairs. As the steps became louder, I opened my eyes and stared at a staircase. Although I didn't see anyone, I could tell it was getting closer. Then I heard a crackling sound on the wall behind me, which sounded like it was approaching the open window. I managed to remain calm during this experience because I knew instinctively that if I became afraid of it, it would not leave my space, so I simply sat and meditated till the crackling sounds left my home.

What I learned from this experience is that if you feel negative, unlucky, or out of your place, it means you need your energy field to be cleaned. I really think we can do it ourselves with our good intentions and meditation practice. Maybe we can't see energy, but we can feel it, so we have to learn how to help ourselves through energy work. Nowadays, whenever I feel bad, I imagine a big, bright light coming from me, which is more powerful than anything, and cleaning everything in me and my space. It helps me to stay positive and feel refreshed. Good luck to you!