The relatively rare disorder often goes away on its own, but it can take several months.
What the future holds
Now that Boatwright's story has spread to the Swedish media, several Swedes have come forth to say they knew him in the 1980s.
Late Monday night, the Desert Sun reported it found Boatwright's sister in Louisiana.
"I haven't talked to him in years. He just disappeared," Michelle Brewer told the paper.
Learning about his life hasn't helped him much psychologically.
He still feels isolated in the hospital, so Hunt-Vasquez encouraged him to reach out to members of the local Swedish-American community.
"They said he was getting depressed because he wasn't able to communicate," said Linda Kosvic, chairman of the Vasa Order of America chapter in San Jacinto, California. "We've been trying to provide him support and make him feel more comfortable."
Members visit him in the hospital, bringing him Swedish foods.
The hospital would like to discharge Boatwright, but they have no place to send him, said Richard Ramhoff, a spokesman for Desert Regional Medical Center.
They can't send him home until they know where home is.