Send ϡ for a MENTAL STATE headcanon.
During and post-game, Link’s mental state is in an unsteady place. Even though he goes through the trials to remember certain things during his journey in the game, he does not remember everything. There are some swaths of his life that are still missing, and those gaps put him into strange states sometimes.
He is prone to nightmares, and can suffer some PTSD symptoms from past fights, and specifically his death.
His amnesia can also leave him disoriented and confused, or feeling overwhelming emotions for seemingly no reason.
He has a long way to go to find true recovery, and he will need help to do this in a healthy way.