Losing 3 lbs in a week?

tjsims88 Posts: 45 Member
edited April 2016 in Health and Weight Loss
So I was frustrated last week ( Sunday) when I weighed myself at the gym. The scale said 175! I get on the scale today and it's 172.2 this happens a lot it's like my weight will be the same for several days then all of a sudden It says 2-3 lbs lighter. Why is that?