Shallan's head injury
The multiple personalities have been... a lot, I won't lie. But I'm coming around to it as it lets Shallan do more things. I'm curious if there's any WoB on if Shallan's crossbow bolt injury to the head when she was in Kholinar was any sort of trigger for this. The multiple personas were rising to the surface before then, but I've thought back and realized they only started becoming more pronounced after that point.
Stormlight does heal, but that bolt was stuck in her head for a while because the head healed around it. Even if the brain was physically healed, was there some kind of rearrangement in her gray matter that sparked the DID? Or is it unrelated?