Doppelganger

I don’t know why I’m writing this to you or if I will actually send it. I don’t even know what I hope to accomplish by writing this all down.
By now you may or may not have realized that I haven’t been in town for a few days, but now a sense of loneliness has crept up and taken hold of me and I guess I am trying to reach out and see if anyone remains who will help me, or even recognize my “problem.”
If, up to this point, you haven’t noticed my absence, then things are as I suspected they would become and my double has taken over my life in town.
I am in one of the hotels our group had traveled to in the past (I prefer not to say which one, and in any case, I don’t intend to stay here for very long.), but I am getting fidgety thinking that perhaps I was rash in running away from the situation.
When odd things started happening and I mentioned it to you, you seemed to take it very lightly. I tried to make a fiction of it because that’s what I do, but as I took notes, events became more serious, at least to me, and I could not figure out how to deal with them.
Rather than rehash my uncomfortable experience, I quote here something I found on the Internet in hopes that you may understand why I ran away.
“Responsibility assumption is a doctrine … holding that each individual has substantial or total responsibility for the events and circumstances that befall them in their life. …the doctrine of responsibility assumption posits that the individual's mental contribution to his or her own experience is substantially greater than is normally thought. "I must have wanted this" is the type of catchphrase used … when encountering situations, pleasant or unpleasant, to remind them that their own desires and choices led to the present outcome.”
I am not crazy, and I don’t want people thinking I brought this “condition” on myself. Someone is out there impersonating me, and I think I need help.