Nick Cannon has revealed how he feels "numb" after the death of his son Zen.MORE: Nick Cannon and Alyssa Scott's five-month-old son dies after brain tumorSpeaking on his show on Wednesday, the father-of-seven thanked fans for their love and support but admitted he is "not fine".WATCH: Nick Cannon thanks fans for outpouring of love"It is brand new to me. So I'm dealing with it.