Amy Winehouse has confessed she took drugs with a prostitute in a London hotel room.The troubled 'Rehab' singer, who was seen bloodied and bruised as she ran screaming from London's Sanderson Hotel at 3.30am the other day with husband Blake Civil-Fielder chasing after her, insists the row was her fault. She said in a text message to celebrity gossip reporter Perez Hilton: "Blake is the best man in the world. We would never ever harm each other."I was cutting myself after he found me in our room about to do drugs with a call girl and rightly said I wasn't good enough for him. I lost it and he saved my life."For the last time he did not and never has hurt me. He has such a hard time and he so supportive. He deserves the truth, he is an amazing man who saved my life again and got cut badly for his troubles. All he get is horrible stories printed about him and he just keeps quiet, but this i too much. [sic]"Police visited Amy at her hotel the other day to question her about the incident but no charges have been filed.The singer was pictured covered in bandages, scratches and bruises with makeup smeared over her face, while Blake was seen with deep scratch marks all over his face and neck. Amy has also raised fears she is injecting heroin, after her feet were pictured covered in blood from wounds between her toes. Heroin users can inject the drug into the space between their toes to prevent them getting 'track marks' on their arms.When asked about the incident, Amy said in a text message: "I'll be alright. I need to fight my man's corner for him though."