Sleep Paralysis or Paranormal Activity?

I have been suffering with this for years. Probably as young as 11 maybe. I have had at least 2 bad experiences with it. Sleep paralysis is the most frightening thing you can experience especially if you hear creepy noises and see the dark figures as I have. I found a YouTube video that pretty much summed up my dark figure experience. Here it is:

Here are my experiences with sleep paralysis.

So now you tell me, have you experienced this? Do you think it more than sleep paralysis?