hi! i'm 5'3 and weight 100lbs..i have a pretty nice body but have a flabby stomach...my friend told me that in order to get rid of it, i need to go on a diet..i really don't wana loose anymore lbs but wana loose the belly and i heard that you can't "SPOT TRAIN", so, if i run like 30-45 min(4-5 times a weeek) and do abs exercises, will it tighten my stomach?? PLEASE HELP....THANKS for ur time! :-)