He was transferred briefly at the start of this month to a specialist cardiac centre at another London hospital, where he underwent a procedure for a pre-existing heart condition.
Meghan and Harry's tell-all TV interview to Oprah Winfrey has dragged the royals into their biggest crisis since the death of Harry's mother Diana in 1997.
I would take an American hell of blood, sweat and tears over a royal heaven of effortless beauty, prosperity and success.
Former US President Donald Trump expressed his concern about telling of his thoughts on Meghan Markle due to "cancel culture," a modern form of social and professional ostracism.
During the interview aired last Sunday, Meghan said her pleas for help while she felt suicidal were ignored.
MIDDLE ISRAEL: Britain without the crown would be like a lighthouse without a lamp, just like history without Britain would be like a zoo without a lion.
Movers and shakers in Israeli society.
"On Monday, I said I didn't believe Meghan Markle in her Oprah interview. I've had time to reflect on this opinion, and I still don't. If you did, OK," Morgan said.
"The issues raised, particularly that of race, are concerning. Whilst some recollections may vary, they are taken very seriously and will be addressed by the family privately."
"It could hardly be more damaging to the royal family, not least because there is little it can do to defend itself," The Times said in a lead article under the title "Royal Attack."