I don't know ... it is common knowledge he was/is going through kidney failure. You can only fail for so long. If he's not dead, he has to be close to death.
UBL was never suffering from kidney failure or any type of serious kidney disease - This is/was a myth that stays alive mostly due to a lazy MSM -
The only known aliment in which many now suspect UBL suffers from is...Marfan syndrome, a disease that attacks the connective tissues and is commonly found in very thin tall people. (Abraham Lincoln probably suffered from this syndrome.) - But it is not life threatening.