I feel like this is a dumb question, but I am new to this whole 'working out thing'. Is there a way to tell if your weight gain is from actual muscle, water, or just being a fatty? I forgot to take measurements of myself when I first started, and when I've stepped on the scale the number has been slowly creeping up again (nothing crazy, but it'll be something like a 4lb difference from night time to morning, but the 'morning' number is slowly getting higher?). I was thinking about getting one of those scales that attempts bodyfat, but I also don't want to pay for a new scale if I don't need to?