Jack's psychiatrist was not a military doctor. He was a psychiatrist shared by him and Wesley. A soldier's mission was heavy and dangerous. The two brothers often went undercover.
Every spy needed a long time to recover after they were done. The brothers could recover quickly because they had a psychiatrist to help them.
This was inevitable!
Once a mission was completed, they would go to the doctor and wait until the doctor gave them a health check before they started their second mission.
The psychiatrist was a man in his forties. He had short hair, was very tall, and slightly chubby. He didn't look old, and his kind-looking face gave people a sense of security.
He was a clean freak and a Doctor Who valued privacy very much.
After seeing the doctor leave, Jack got someone to clean up the room next door and change the bedsheets, tablecloths, and other daily necessities. The psychologist was very satisfied after checking in.