Although, I dunno, at least according to her memoirs she seems to have been ill kind of on a regular basis starting in childhood, often around the time someone was horribly abusing her (which of coures doesn't narrow it down a whole lot), so I was at least partially chalking it down to reactions to childhood physical abuse and/or mental-becoming-physical pushback to PTSD problems due to all the abuse.
Re: Wilhelmine
Although, I dunno, at least according to her memoirs she seems to have been ill kind of on a regular basis starting in childhood, often around the time someone was horribly abusing her (which of coures doesn't narrow it down a whole lot), so I was at least partially chalking it down to reactions to childhood physical abuse and/or mental-becoming-physical pushback to PTSD problems due to all the abuse.