Debbie Nelson, Eminem’s mother, whose difficult relationship with her son was reflected in much of his earlier music, had died at the age of 69. The rapper’s representative, Dennis Dennehy, confirmed his mother’s death to US media. Close sources say Debbie passed away due to lung cancer. She died last night in St. Joseph, Missouri. Debbie’s diagnosis was first revealed in September, and reports at the time said she didn’t have long to live. Debbie Nelson, was born in 1955 on a military base in Ka, and said she grew up in a ‘large dysfunctional family,’ according to her 2008…