Martin Pistorius was trapped inside his lifeless body from the age of 12 after being struck down with meningitis and said all he could do was "simply exist".
A man has revealed the living nightmare of waking up from a coma – only to find he was unable to tell anyone.
Martin Pistorius slipped into the coma aged 12 and could not move, communicate or do anything for himself for 12 years.
And to his horror, when he did awake, he was unable to communicate his return.
The South African youngster was diagnosed with a debilitating form of meningitis in the late 1980s and was left unable to move, speak or even make eye contact.
His parents, Rodney and Joan Pistorius, were left to do everything for him - from bathing and feeding to turning him in bed and were advised he would soon die.
It was such a tough life that Joan told NPR.org that she remembers looking at Martin one day and saying: "I hope you die."
And yet all the time – from the age of 14 or 15 – Martin, now 39, was awake.
He told NPR: "I was there, not from the very beginning, but about two years into my vegetative state I began to wake up. I was aware of everything, just like any normal person.
"Everyone was so used to me not being there that they didn't notice when I began to be present again.
"The stark reality hit me that I was going to spend the rest of my life like that – totally alone."
Martin said all he could do was "think" – and his thoughts became increasingly darker as time went on.
So he decided to block it out and stop thinking.
He said: "You simply exist. It's a very dark place to find yourself because, in a sense, you are allowing yourself to vanish."
Martin's brain began functioning fully at the age of 24 and his body followed at the age of 24.