Pamela Anderson has come a long way since her humble beginnings as a fitness instructor in Vancouver. The daughter of a furnace repairman and a waitress has experienced one of the most successful careers in Hollywood -- and achieved icon status. But not every area of Pam's life has been as successful as her career as a model, actress, and centerfold. In honor of Pam's 46th birthday on July 1, we're taking a look back at her many highs and lows. Keep reading for all the juicy details!