I am 25 years old, 5'6" and 160 lbs. I workout every day (usually JM RI30 or NMTZ) and run 5K every other day. I've lost 23 lbs over the past couple of months via exercise and healthy eating. Now, I am trying to get down to about 140 but have been stuck at this weight for about two months, and I'm getting frustrated! I've…