Okay. so im 15 and im singing up for a gym tomorrow and im nevrouse. Im invisioning all of these like body building guys working on their abbs and stuff. and im walking on a treadmill on the lowest possible setting. Im pretty fat and i was wondering if im gonna look like a fat kid in a building of body builders. I have never stepped into a gym. so i have really no idea. i also have low self esteem and stuff. So. what are gyms like. Are their other fat people there as well trying to loose weight. :[ pretty nervourse thanks