Kanye West has "never effectively grieved" his mother's death

Sources told TMZ the 39-year-old rapper had increasingly grown more emotional over the last few weeks, thanks to the pressures of touring, running his business, supporting wife Kim Kardashian West through her trauma of being robbed at gunpoint last month, caring for their kids North, three, and Saint, 11 months, and a "shocking" lack of sleep.

But Kanye's breaking point came with Donda's memorial, and he cancelled his Los Angeles concert on November 20 - the same date her funeral had taken place in 2007 - before scrapping his entire tour.

According to the insiders, Kanye had been struggling to handle stress over the last few months, but in the week or so before his breakdown, he really started to unravel.

The 'All Day' star had been expected to leave hospital on Monday (28.11.16), but he was deemed not "mentally ready" to go home as doctors were concerned he'd push himself over the edge again.

A source said recently: "Kanye isn't ready to go back home ... If he gets released and isn't mentally ready he will go back to his old ways and push himself over the limit again. He needs to keep up with counselling even though he has an intense work schedule. He is just really drained and weak. He isn't himself."

But while he remains in hospital, his 36-year-old wife has been a fixture by his bedside.

The insider added: "Kim is being patient and staying by his side. They both have been through a lot but are staying strong as a married couple and helping one another get back up."