no this is not an alter but is dissociating. Dissociating is not being mentally connected to what is physically going on - floaty and far away.

an alter is the acting out of a memory that you cannot remember and unless you have been in therapy and that therapist helped you to become "co-conscious" you would not know you are acting out a memory or even know what that memory is.

for example right now I am a bit dissocaited. I feel kind of floaty and light headed one way I explain the feeling of being dissocaited is the same feeling you get after taking cold medications - some people call it balloon head, medicine head, medication hang over

I have an alter Margo. I would dissociate into my mental safe place la laland. Mentally I was floating on my clouds, sitting under my tree, listening to music and going to sleep.

Physically I was acting out a memory - I picked up a table and threw it at my therapist. when experiencing the Margo memories I am not aware of what I am doing or saying, but I do know from my therapist telling me that I swore at her

I am not co conscious with the "Margo" memories. But I have been co conscious with other memories. You can find my experience with it in my blog but bottom line-

when I am co conscious its kind of like being floaty and far away at the same time as the memory is playing like a flashback and at the same time knowing what my therapist is saying and doing and being able to see my therapist at the same time as seeing the memory that is replaying.