ISAAC.
No? We all remember different things and most of us led different lives. There's at least two other versions of me running around and one of them was never an alpha, instead having joined Lydia's pack. Where he came from, she was a werewolf, not a banshee. Another version gave up his spark and is a beta now. One who used to be here lived a normal life and married and had children with Kate because she'd never betrayed him. It's different here. Whatever you last remember could literally be anything.