ViciousPepper
even now I'm confused who is the first author who created this trope of mc feeling pain when he gain his other self memories. you know exist real life case of people that lost their memories and 10, 20 years later suddenly regain these lost memories without feeling any side effect (other than confusion and distress probaly)
Late comment but you cannot simply compare a person suffering from lost memory and a soul occupying a foreign body because: The lost memories of that person was always there stored in his brain but was being suppressed because of illness or head trauma. Whiles the foreign souls has to deal with the new experience of taking over that native person body and receiving his whole life memory which comes with important and none important information which spans for years. So I believe it would be nonsensical if a foreign soul would be a able to claim someone entire life worth of memories and not suffer any type of consequences. Hope this helps 🫡