my wedding is Oct 1 2011 i am a size 18-20 right now and would LOVE to be at a size 8-10 before my dress hunt starts. I started c25k today. It went good but i know it will only get harder in the next week. my issue is that i always feel like im going to die when i run. know i understand that i wont but i feel like i cant breath and i get light headed cuz i cant breath.....i need hints ....and i also gave up mounten dew today.....wish me luck on that one 