I ahve 5 months to loose my weight and tone up. I want to drop about 15 pounds. See here is my problem, I got my diet in order. But I CANT run. My body just cant handel it. Im 18, 6'0 and weigh about 170. What should I be doing? I plan on doing crunches every night before bed. I also am going to weight train 3-4 times per week and keep my good diet going. But what else can I do to shed some pounds? I cant do the tredmill,olyptical or anything. I try and i get a minute in and just want to kill myself slowly. HELP me out