Alot of it is they are just used to seeing you a certain build. So of course you look thin compaired to what you used to be. If they had met you at this weight and known you as long at this weight, then 5 pounds wouldn't make them blink.

I get the same thing from my family and my SO's family. They keep asking how long to I plan on continueing to lose weight and when will I stop. I am in the healthy range for my height now, which I'm excited about, but I would like to make improvements on certain areas of my body. If it takes building more lean mass to tighten up and the scale doesn't move, so be it. I also am considering lowering my overall goal to 125 too though