currently 6'2" inches, 430 pounds. I have always been large, not a tub of lard, just always been built like I should be a linebacker in the nfl. I have been working out of and on the last 5 months, over the last year I have cut out a significant ammount of sugar, made major changes to my diet, such as eating smaller meals more frequently, increased my fruit and vegetable intake. when I work out I do about 10-15 min on the eliptical, I dont have the energy to do more than that, it just whipes me out. other than that I do high rep low weight workouts. this all takes about an hour and I am breathing hard the entire time. When i am done i am completely spent. back before xmas last year, I weighed about 390 pounds. that weight hadnt changed in 4 years. I GAINED 40 pounds when I started working out. I do feel a lot better, my back feels better, Im not tired all day, i am more mentaly alert, but I just cant seem to drop any weight??? I understand that muscle weighs a lot more than fat, but come on, no change in 4 years, I cut out A LOT of sugar, stop drinking soda but once or maybe twice a week, and when i do its diet, I have stopped baking a cake and eating the whole thing over a weekend, stopped plowing through costco packs of oreos, and no weight loss. I hear lots of stories where people stop drinking soda and they lose 100 pounds over a couple years with no other changes. I still dont eat perfectly healthy, but I have made major changes to my diet and excersize. shouldnt I have lost at least some weight???? my body type seems to prefer building muscle to losing weight, my shoulders and pecs have increased mass by i guess about 25% and I am getting stretch marks in my shoulders. does any one have any insight? I plan to do to the doctor soon, maybe I got some stupid imballance or somthing.