Hi Rosa! I read your post and I just have a few suggestions. First, let me start by saying that I have lost 90lbs twice on the low carb diet, so stay with it. I am taking 80lbs off once again. To your issue, make sure that you are in ketosis (and you should be with 30-35g/day), try to do 30min. of aerobics, make sure your heart rate is in the aerobic zone the entire 30min. (excluding warm up), and you may need to add LCarnitine and/or Coenzyme Q10 to your regimen of supplements. I can't stay in ketosis and lose weight without LCarnitine and CoQ10. If you aren't taking these supplements, try LCarnitine 500mg 2x/day and CoQ10 100mg/day. Good luck to you!!!!