Ghosts Before Or After Falling Asleep

I'm a very spiritual person and I do believe that there are things unknown beyond the physical world. That being said, for the past year or so, I've been experiencing really strange occurrences at night either just before or after I've fallen asleep. I used to classify these experiences as dreams/nightmares but I don't anymore. Often times I will "wake up" and I'll just know that I'm not alone. I'll feel very afraid and uneasy, which forces me to start looking for the source of how I'm feeling. Usually what I find is a spirit. One night, I came face to face with a young boy ghost dressed in white, who looked terrified as he peered up at me, as if he wanted my help. I was so terrified that I just slammed my bedroom door shut in his face, which I regretted after because I felt as though I was supposed to help him.

Another time, which was last night, I was drifting to sleep when I suddenly felt so scared that it was hard to breathe. When I opened my eyes and directly in front of my face at the side of my bed was a male ghost, making hand gestures at me, and for some reason I refer to him as a "crack addict". I don't know if that's because of the energy he gave off or what. I closed my eyes expecting to open them again and have him be gone, but he was there still, making the hand gestures. I didn't know what to do so I quickly got up and turned my lamp on, and when I did that he was gone.

I was just wondering if anyone else had ever experienced anything like this, because although it scares me I do feel like if I'm supposed to help them I would be able to.