By Helen Kelly Kate Garraway has been a rock for her GMB mate Richard Arnold after he shared the tough news that he’s now caring for his mum. Despite dealing with her own sadness over Derek Draper’s passing, Kate, 56, has been a huge help to Richard. His mum got sick last year and now needs him all the time. Richard told The Sun how Kate’s been amazing, giving advice from her own time looking after Derek, who was very ill but kept out of the public eye. He said: “Mum had a bout of ill health last year and unfortunately she’s now no longer independent and I’m there every day.” READ MORE: ITV2 L…