Oh, love. Not surprised that all of the medical stuff is triggering. Hang in there, it will pass and you will feel better. A PTSD season is just that, a season, and it will pass. Have you considered taking your sister to therapy for a few sessions, so you guys can hammer this shit out? "Couples" therapy isn't just for romantic partners, and it does help.

It's so interesting to talk to my friends with teenagers, and to just get to watch all of these wonderful young men and women grow into themselves. I really like that part of parenting and being part of a parenting community.