WATCH BELOW: No excuses! Michelle Bridges shows off her at-home ab workoutTaking to Instagram, the former Biggest Loser trainer shared a professional photograph of herself and reflected on her milestone day."Without a doubt. The best birthday I’ve had in years," Michelle wrote."The out pouring of love and friendship from family, friends and supporters. I drove three hours so I could be with my son, who rolled over, threw an arm, and whispered in my ear 'I love you mumma.