Although in stable condition, Bret Michaels is now at a risk for seizures as he recovers from last week's brain hemorrhage, new test results show. A new statement released Tuesday afternoon by the singer's rep explains that Michaels, 47, suffers from a side effect called hyponatremia -- a lack of sodium in the body, which leads to seizures.
The doctors call the discovery a "minor setback" and are "hopeful that Bret will gradually improve as the blood surrounding the brain dissolves and is reabsorbed into his system, which can be a very painful recovery and take several weeks to months," the rep explains.
Still under 24-hour care at in the ICU of an undisclosed facility, the Poison frontman is "in positive spirits" and "responding well to tests and treatments," the rep says. "His condition could have been fatal."
The medical staff tending to Michaels still has not determined what caused the bleeding -- though some continue to wonder whether it could be Michaels' June 2009 injury at the Tony awards (when a prop piece struck him to the ground).
Also complicating his recovery: Michaels had an emergency appendectomy earlier this month, and also suffers from Type 1 diabetes.
The medical staff plans to release more specific information about Michaels' condition next Monday.
Earlier Tuesday, Michaels' father Wally Sychak told Extra about speaking on the phone with his ailing son. The Rock of Love star "sounded a little slow, but fine," Sychak said.
"He understood what he was saying and knew me. Everything seemed good that way...They say he's moving his arms and hands," he said. "The best as they could expect at this time."