How can I figure if I have an aggressive ghost or if these are just happenings?

I think i have answered this question before. I think that what you should do is have a video camera set up while you are asleep and also while you are out of the house to see what is happening to you in your sleep and who is opening the curtains. You could also call in a local paranormal investigating team as they are free and will be able to let you know if there is in fact something paranormal going on at your places or not and if there is then they will be best at getting rid of it.