Accepting my NSV

So I have been on here since January and have lost about 16 pounds putting my self in onederland ahhh. Even though the scale has shown a difference, I didn't feel like I was seeing a change. Yes my clothing was fitting a little differently but I always just make the excuse oh it's because I wore it already or things like that. One friend commented that I lost a lot of weight and my response was no its just these pants and shirt they suck it in cause they are for the gym. I even went to Old Navy and bought a dress in a L but of course it is ON and they are very generous with there sizes. I always say shop there is you wanna feel skinny cause there pants run big so you can buy a smaller size. I know this all sounds bad and like I hate my body but really I am ok with my body but I don't like when others comment on it. I am terrible at taking a compliment and I always feel I need to look around to see who they are really talking about. But anyway I have been feeling fat and lazy lately. I had to have some surgery so I haven't been to the gym or work since the 3/16 and i can't go back to the gym for about a month. The scale is still showing a difference but I don't see it. So here is the NSV part. Today I was in my sisters room getting something I borrowed when I saw a new dress she bought and decided to try it on. It fit which I was surprised because its a L but hey its a dress there is wiggle room. So then i tried on a shirt too it also fit another L hmm. Now I though hmm let me try a pair of pants on. So i try on her jeggings and they fit but hey they are stretch so they might fit. So i decided what the heck ill try on her work pants and regular jeans and holy moly they fit. THIS HAS NEVER HAPPENED. My sister and I are 18 months apart but have always been worlds apart when it came to clothing sizes and we also have completely different body types. I can't believe that we could legit share pants , of course that will never happen , cause she won't share but I am still in disbelief. If I can fit into her clothing that means I can shop at regular stores. This means I can shop at the store I work in.