This happened to me back in 2011.
I usually never had any vivid dreams before this happened. I went to bed and fell asleep as normal but I had a very vivid dream that night which I still can remember to this day. I dreamed that I was in the car driving my normal route to work, when a woman in white appeared out of no where. She was standing in the middle of the road. She had long blonde curly hair, tall and she was wearing a long white dress to the ground. She was staring at me, as I got closer to her I woke up. I thought it was just a really weird dream and didn't think much of. I guess I was wrong as a few months later she showed up at my house.
A few months later and it was January 1st 2012. I was at my parents house for over the Christmas holidays. My mum asked me would I get some timber from the shed and I said that I would get it. I opened the door to the shed and stepped inside. The shed felt a little colder than usual but I didn't think much of it. I started to gather up a few logs when I heard a noise to the right of me. I looked over to see one of the bucket handles was moving. I thought it was strange, I knew I couldn't have made it move as I was no where near it. I put the logs down and I turned to see what caused it. I looked around and that's when I saw a woman in a long white dress standing behind me. I couldn't believe that I was seeing the same woman from my dream. I was scared and I closed my eyes for a few seconds and when I opened them she had disappeared. Then she reappeared again for a few seconds before disappearing. Maybe she knew I was scared of her.
A few nights later, my parents and I were in the kitchen watching some tv and I was texting one of my friends. I turned to the tv for a moment and that's when I saw something coming out of the wall near the tv. I could see part of a hand and a face, next I could see a torso and arms and features of a face appear. I couldn't believe what I was seeing. I could tell it was the same woman from my dream and the one I saw in the shed. When she had her top half of her body sticking out of the wall she turned her head and started to stare at me. This lasted a couple of minutes and then she disappeared. I never saw her after that night.