I gained 8 lbs in one month, so I was trying to be very careful and over the next three weeks I had only gained 2 lbs. I weighed myself on Thursday morning and was still the same weight. Then on Saturday I weighed myself and I had gained 3 lbs. I don't know how because all I was eatting were fruits, veggies, meats, and a few sweets. Also I worked a 12hr. shift at the hospital as a nurse. Is there something wrong with this?