Morsi in hospital following Monday's trial appearance
The Interior Ministry originally told reporters that the ousted president was not ill, but was just undergoing routine medical check-ups.
Other reports indicate that upon arrival to the maximum security prison in a remote desert near Alexandria, Morsi complained of high blood pressure and high blood sugar according to the report.
Previous reports have cited that the former president has had a series of medical conditions in the past, including diabetes, and a peptic ulcer. He reportedly also underwent surgery in 2008 under his skull.
Monday's court trial represents Morsi's first public appearance since his overthrow in July. During the court proceeding, Morsi was reportedly "feisty, speaking loudly to the judges and [proclaiming] that he was still the president of Egypt." The outbreaks and interruptions are allegedly the reasoning behind the judge's decision to reschedule the hearing until January 8th next year.