MIDTOWN, Manhattan — The young mother who died after falling down the subway stairs in midtown may have suffered a medical episode, according to police. Malaysia Goodson was carrying her 18-month-old daughter down the stairs of the 7th Avenue uptown B-D-E station Monday night. The 22-year-old mother had already climbed down five flights of stairs to the final staircase leading to the platform, but fell at the top of the last staircase, which consists of two separate flights of stairs. […]