LISA MARIE IS EATING HER PAIN (250LBS) AND IS LIVING IN HELL!

Forced to share twin girls with hated ex-hubby LISA MARIE PRESLEY is in a rage over her custody deal with despised exhubby Michael Lockwood — and friends fear it could push her over the edge! Sources tell that Lisa Marie — who’s abused her body with drugs and booze and turned to junk food to…