The Scottish singer's mum Bridget passed away in 2007 aged 91 and Susan said she still sees her in the house that they shared in West Lothian.
'The council house is my mother's house. Her energy is still there,' SuBo told The Sun.
'I've actually seen my mother in the house. I think she was letting me know she was all right.
'There was a lovely smell. Perhaps it was her perfume, I'm not sure.
'I used to think she'd abandoned me when she died. Maybe she was telling me she hadn't.'
The I Dreamed A Dream hitmaker admitted that since losing her mum, she suffers from feelings of isolation.
'My biggest problem is I feel lonely, especially at night,' she said.
'I always had a fear of being alone and now I am.
'Everybody died and left me by myself. There was one period within a few years, where my dad, my uncle, my sister, then my mum died.
'It's as if I was working with a few building blocks and those blocks were scattered and I had to find them one by one.
'When I first went for Britain's Got Talent I had such a feeling of failure and that's still part of me.'