Problem: Amy is a 20-year-old female gymnast who presents to you because she has missed her period for 6 months. She feels cold all the time and has noticed that when she crosses her legs, she gets pins-and-needles sensations down her leg. She had a stress fracture of her right tibia 5 years ago but denies any other medical history. She denies being sexually active, and the review of systems is positive for frequent heartburn, constipation, and fatigue. As you take more history, you realize that this patient consumes a very limited diet. She is a strict vegan and restricts her calories to <1,000 kcal/day in order to "stay in shape." She is 5 ft 3 in tall and weighs 100 lb, but she thinks she is overweight. Need Assignment Help?