Do you think you've ever had a real ghost experience?

I actually saw my dead cousin's face superimposed over the face of her sister (the two look nothing alike). We were at a funeral home at my mother's wake. Another time, I didn't see anything, but I was temporarily living alone in my brother's empty house, and he had told me that a woman died in the house before he bought it. I woke up at 2:05 am one night, and I could hear moaning in the bathroom, and sounds like someone being very sick.