Do you notice that uglier people get treated differently?

I am in college and I kind of let myself go a little bit. I gained 10lbs, I stopped dying my hair light blonde and let the dark blonde grow in, I dont spend that much time on my hair anymore or that much money on my clothes. I guess I just wanted a break. I noticed I was starting to get superficial and decided to stop worrying about diets, designer clothes, hair dye, and tanning. I look natural now and even though I am going to work out to be fit, Im keeping my more natural look. Anyways, I noticed that people treat you diff. when you look "ugly" or less platinum blondish, skinny,nice makeup and clothes looking. For example(and this is just 1 i have plenty), the career counciler at college who is young(25ish) treated me differently last year than this year. His body language was different, he smiled, he gave me my time, and answered all my questions patiently. This time he rushes any meeting I have with him, seems impatient, and sometimes even sarcastic. I noticed that when you are superficial looking people(guys in particular) give you more attention and are more patient with you, while on the other hand they treat you as if you are dumb and ditzy. However, now that i look more natural people take me more seriously, but if I dont know EVERYTHING they treat me as if I am just a dumb ugly(im not really ugly lol just diff. looking) woman who should know better because if she looks like that she should at least be smart right? This is not just one incident, I have many examples regarding him and other people. I just think people like him need to grow up. Do you guys notice what Im talking about?