I'm so sorry 2 read about u mum its so cruel u not alone my mother also terminal with bowel cancer we don't know how long she got . At the moment the pain is under control so she only on pain killers . I know in time that she going 2 get worst and that scares me . its so distressing 4 u all watching u loved ones suffer and it sounds like u mum is suffering bad have u spoke 2 doctor or who looking after u mum and tell them that she suffering in pain they could give her something else. It's so heart breaking anyone who going through this situation . I hope they sort u mum pain out 4 her . It must so hard 4 her I understand about dementia my grandfather had it . It's so cruel anytime u need chat I'm here take care so sad :(