This happened to me back in 2013.
I had just come home from work and the atmosphere in the house felt different than earlier that day. When I was starting to make dinner I felt very uncomfortable in the kitchen but I pressed on and got it done. Then for awhile after that the atmosphere seemed to change again, back to how it was earlier that day. I watched tv for a while before heading to bed and I felt as though I was being watched. I started to feel uncomfortable again. About an hour later I decided to go to bed, when I was walking to my bedroom I thought I'd seen a shadow. It felt like I was being watched again.
I was laying in bed trying to fall asleep, it felt like I wasn't alone in my room. And yet again it felt as though something was watching me. It took me ages to fall asleep that night. I remember having a very vivid dream before I woke of a black smokey figure hovering above me. It grabbed my shoulders and pushed me into the mattress. I started to fight it off and I grabbed my necklace off the bedside table and hit the smokey figure. After I did that the smokey figure disappeared. I woke up with the necklace in my hand just like my dream. It freaked me out and I quickly jumped out of bed. I realized that it wasn't a dream at all and I didn't go back to sleep after that.
A few weeks later, I was sick with the flu so I couldn't go to work and I was stuck at home. Luckily I was nearly one hundred percent better. I decided to have a nap as I wasn't sleeping very well at night because of my flu. I got into bed and I eventually fell asleep. That's when I started to have a vivid dream of the same smokey figure again. This time I asked it what it wanted from me and it said something but I couldn't remember. I told it I wasn't afraid of it and it laughed at me. I got angry and I told it to leave and never come back. When I said that to it, it got really angry and flew toward me. I could feel its hand go through my skin into my body and it squeezed my kidney. I was screaming in pain it hurt so bad that I woke up. I looked to my left and there standing beside my bed was the smokey figure, it looked at me and went through the wall. For a few hours I was still in pain and then it eventually went away.
A few days later and I was over my flu but that's when I developed another problem. I developed a kidney infection and went to the doctor, the doctor checked me out and gave me some medicine to help clear it up. The medicine worked but shortly after that I developed kidney stones and it was in the same kidney that smokey figure grabbed me. I'm pretty sure that smokey figure made me sick.