Ms Freyer said he'd been "up and down'' and objected to an application by the Herald to photograph him in court because she feared it would affect his wellbeing at the Mason Clinic.
"Today he's calmer and better but he's actually very unwell.''
Judge Nevin Dawson asked her if there was any evidence of that in any of the medical reports he had received and she conceded there wasn't.
Despite that, Judge Dawson ruled pictures of Tampin could not be taken at today's hearing but indicated further applications could be made when he appeared next on September 6.
Throughout the hearing Tampin stood quietly with his hands behind his back, occasionally looking around the courtroom.
He was dressed in a lime green shirt and a tan jacket and wore his hair in a ponytail.
Ms Freyer hoped by that date the doctor examining Tampin would be able to say if he was fit to enter a plea to the charge of murder.