Tom Parker has revealed he's in celebration mode after his latest scan showed his brain tumour has reduced in size.The 33 year old was left devastated last year when doctors diagnosed him with grade four glioblastoma after he experienced a series of unexplained seizures. Since then, he's been keeping his 214,000 followers up to date on how he's been coping, regularly leaving doctors in "shock" over how well he's been responding to the treatment.