Oh, I have a collection of experiences! However, I will only share the two most memorable ones.

I have a habit of walking around the house, pacing really; it helps calm my nerves. Every now and then I get the sinking feeling of being observed. It doesn't occur often mind you but when it does, you can cut the tension with a knife. And when that happens, I don't feel safe pacing during certain hours (2-3am). On that night/morning I felt a terrible sharp slap on my right shoulder. The sheer force of it nearly sent me crashing! It really hurt and I basically ran to my room. I didn't pace for a few weeks after that.

My sister used to sleep in my room, until suddenly she didn't. After much goading I managed to extract the reason as to why. Apparently, one night she woke up for no good reason. She said she felt uncomfortable but didn't know why. It wasn't until she faced my direction that she realized the cause of her distress. There was a figure of a person, standing at the foot of my bed, watching me. I was sleeping (good thing too; imagine waking up to that). As you can imagine, she didn't sleep quite sound the rest of the night.

To this day, I sometimes catch glimpses of figures darting just beyond my peripheral vision and peeking around the corners. I try to pay them no mind. I'd like to think if I ignore it, maybe it'll go away?