Did Mary Lincoln need committal?

[L Verge]

Paregoric was evidently the "aspirin" of its day. We lived with my grandmother (born in 1874) while I was growing up, and she talked about using paregoric for just about everything. She lived to be 91 and managed her own affairs and ran two tenant farms until her late-80s. It wasn't until she was 88 and fell and broke her arm that her mind began to fade. We always blamed the set-back on the chloroform that she was given as an anesthetic during the setting of her arm.

Caleb makes such a good case fo PTSD in his book on Rathbone. Has anyone ever considered PTSD in Mary. It would seem that it could logically have built up from the time of her mother's death, losing two sons, and then her husband. Having a daughter-in-law that you loved turn against you also wouldn't help the situation.