Night Terror? Or Demon?

I am 14 years old and I live in Runcorn although I am originally from Liverpool. I have used a ouija board once before this experience, but I am positive I used it and closed it properly. Although I realise that sometimes experiences like mine are called "Night Terrors" this one didn't feel right, here is my story.

One night I was awoken but I couldn't move properly, I could easily move my arms, legs, neck and head but I could not get up because my belly felt heavy and it was painful to even sit up and practicaly impossible, In the end I think I fainted, but I have never heard of night terrors being painful.

Another time after that, me and a friend were performing a Seance. Halfway through we started getting some pretty bad messages all directed to my friend. I was very calm during this as I knew how to sort it out and end it but before I ended it I found I was crying uncontrollably, although I was not feeling this emotion I somehow thought maybe I was feeling the spirits emotion? I'm very very confused, also I feel like there may be someone watching me of a night... During my time with the ouija board we encountered some bad spirits but we thought nothing of them. My other friends brother told me the religious view of a night terror is a incubus or succubus?

But I do no know what they were doing or whatever. Strange things happen in my bedroom as well, like my friend (the one who performed the ghost things with me) was adamant something climbed into bed with her whilst staying over in my house, (we were sharing and I had gone to the toilet).