11-year-old hailed as hero after saving mother during medical emergency on San Antonio highway

11-year-old hailed as hero after saving mother during medical emergency on San Antonio highway

An 11-year-old girl is being hailed as a hero after her quick thinking helped save her mother’s life during a medical emergency on the side of a San Antonio highway.Last month, Jenna Lester was driving with her daughter, Krista, near the Boerne Stage Road exit off Interstate 10 when she began experiencing tremors, heart palpitations and blurry vision. After Lester realized something was wrong, she pulled over and told Krista to call 911 — a mome…