I am 5'3, i weigh 156.6, with a cheat size of 36dd, am i over weight?

105-140 lbs: Upon reaching adulthood, we don't take age or gender into account when determining appropriate weight, just height. Check out http://www.nhlbi.nih.gov/health/educational/lose_wt/BMI/bmicalc.htm to calculate body mass index (BMI). Normal is 18.5-24.9 while overweight is 25-29.9 & obese is 30+. However, this is just a starting point. Body fat percentage is even more important: don't be skinny fat.