Yup, I've dealt with it ever since I younger but I haven't experienced it in the past 2 1/2 years it comes and goes. It's horrible when your real young and trying to scream and move but you can't its scary. I've learned to just ignore it and remain calm so it's gotten easier to deal with. Sometimes I saw a shadow hovering over me or heard a weird noise and it feels like someone is holding you down or sitting on your chest. Just remain calm and close your eyes its better not to panic!
People say its ghouls and demons i don't believe it though !
It was horrible for me about 2 years ago when it happened so frequently that It just got annoying and led to me having my first OOBE(out of body experience) but that's another topic.
Just a few days ago, at exactly 6am, I thought I am going to die because I am having sleep paralysis and it makes me really weak that I can't fight it anymore. I know I'll die if I will close my eyes, but then I survived.