So i've gradually pumped up my exercise, and am now going for a long walk (long for me anyway lol, 30 mins minimum) and sometimes doing yoga. I weighed myself yesterday, and I put on 4kgs! I nearly cried! I haven't changed my eating habits, but I did more exercise and put on weight? I've either just gotten my period or am having implantation bleeding, time will tell, so I figure either way some of it is waterweight (I retain fluid like nothing else in both situations), but that wouldn't account for 4kgs worth! Does anyone know what this could be? I know muscle weighs more than fat but I would've thought some fat would've dissapeared as well