feeling lighter during weight loss

Hello everyone, I'm new here to this. I just wanted to come on and ask a few questions to the rest of you and see if you all feel the same way that I do. I've been trying this weight loss thing for a while now, however, I just recently got on track with insanity for two weeks straight and eating better and can say that I honestly feel lighter. I've lost about seven pounds and can notice a SLIGHT change in my body. I'm not losing any inches in my waist as I would like but I feel like I notice it in strange places. I can feel my collar bone more so now which isn't so strange, but when I look straight in a mirror, I feel like my physique itself has just gotten smaller even though I dont see it in very specific places if i were to look at them. Has anyone else experienced this? Also I noticed that when I am in class ( I'm in college) if there is a smaller desk that I maybe had to squeeze into before, I just feel different and am able to sit in that desk with a lot more room than I had before, despite me not noticing weight loss in specific areas. Is this also something you all feel like as well? Please respond to this and let me know how you have felt. Thanks in advance for your responses !