not cathe here but here's some of my input..... I am 5ft also and if you weigh 105lb you are doing great! I weigh 113 (1 1/2 years after having a baby) and am trying to lose 10 more pounds. I think, IMO, running can do a lot for your stomach and for losing weight. I have read about shocking your system- change things up a bit, keep your muscles guessing. Try doing things that you haven't done before. Have you done Cathe's KPC and Kickmax workouts? They are awesome for toning arms, back, legs and stomach. I get great results from Cathe's Pyramid upper and lower workouts too! There are so many to choose from and they are so worth it! Good luck and congratulations on your marriage.