Disbelief issues anyone??? Am I just being weird??

throw the larger pants away!!!!!!! Don't continue to wear them at all. You will always worry that one day they might fit but if they are not there, you will be wearing the correct size and felling good

Absolutely me too! I've removed (not lost as that implies I might "find" it again), 40kg this time, which is actually 60kg from my heaviest ever.
I can now shop in "normal" clothes shops and still can't believe it.

I'm wearing size 12 jeans, which I never thought I would again and still look at the size of them and think I can't possibly fit them.

I am terrified that when I get to goal (only about 4kg to go), I will put it all back on again as that is what I have done all my life every other time i've got rid of the weight.

This time I am donating of all my bigger clothes which I've never done before.

I have the opposite problem, disbelief at how small I USED to be. My next younger sister is a size 3-5 in Juniors, when I was her age - and up until I was 20, actually - I wore a size 0 or 1 in Juniors and 0 or 2 in misses. She already looks so tiny, and I was even smaller! At the store I sometimes look at a pair of 0 pants and I just can't imagine how anyone is small enough to fit in that without their body just crumbling apart. I feel like my bones must have moved out too or something because it's just nuts. And that was only 3 years ago. So much change!

i have pretty intense body dysmorphia (meaning I can't see my body for what it is). I had it when I was 40+ pounds heavier (didn't see myself as overweight), and I have it now that I'm smaller. The other day I bought a French-made shirt. It was on a sale rack, so it was the only one of its kind, and a size 36. That number meant nothing to me, and there was no range for comparison, but I tried it on and it looked nice, so I bought it. When I got home and was cutting off the tag, I saw that the equivalents were listed on it in small print--and that a 36 was listed as an extra small. If it had said "extra small" on the label, I would never have picked it up and tried it on.

I'm hoping I'll learn to "see better" with time.

I still feel like I'm lying when I go to the straight sizes rather than plus! And since I like tighter fits, I even own several items in SMALL now!!! wtf!

I got this today too! I went shopping for the first time in like 3 months, and couldn't believe what fit me, and what stores I was able to shop at, without even needing to check if they carried clothes that went up to my size! :-)
I was a size 20 when I started here, and had just started fitting into 14s when I last went shopping for a few essentials, and bought myself a pair of 12 jeans as a bit of a goal. Well, those jeans were fitting me within a week or 2 of buying them, and I've been taking them off without even unbuttoning them for the last month, so finally went shopping again today, and still started with trying everything on in a 14, saying you never know if different styles fit different, or if those jeans had just been really stretchy. I finally wound up buying a 10 that fits great! I have never even been a 12 as an adult before (maybe for a few months in 8th grade, but that hardly counts), much less a 10.
I even found a cute skirt I liked, and tried it on in a 12, but it was a little too big. I looked for a 10, but they were out, so figured I'd buy the 8 as motivation, hoping to fit into it someday soon. I didn't even try it on until I got home, and almost fell over in my new cute skirt when it zipped up all the way and fit perfectly! :-D
I also had to get some new bras and undies, since I'm still wearing all the same stuff from 56 lbs ago, and it's starting to get ridiculous. It took like 2 hours to finally figure out my new size, and what styles work now, and wound up going from a 40DD to a 36D! So weird, but so good.
I still pick up 16s in my closet when I'm getting dressed for work in the morning, and laugh when they just fall down (and get a little disappointed, too, since I loved those pants a few months ago, and now I have no clothes left).
I think this is the weekend I finally clean out my closet and get rid of all the 20s, 18s, and 16s, rather than just keeping them in a pile in the corner, and trying to keep wearing them, even though it's getting ridiculous to even try! :-)

This is completely me! I was in a 24/26 and wearing 3x shirts, now I am a medium and wear 8/10. My coworkers tell me how "small" I am and I just can't believe them. It is exciting, but very hard to believe.

The worst is when I am not in clothing as I see what I have done to my body and how stretched out I am as I never have been "small". I wore an 18/20 in high school.

Hopefully this will get better!

Yes, i especially think every time i go over on my calories that i'm suddenly going to wake up 120+ lbs heavier..

I am right there with you! I have went from a size 26 to a size 14, and it's hard to go clothes shopping! You would think it would be fun, but I really dread it because I have no idea what looks good on me. While I am really happy I am able to buy smaller, cute, in style clothes now, I hate having to literally try every single thing on right now.

I catch glimpses in the mirror, or a reflective window and still can't believe that's me, so I would have to say that what you are feeling is completely normal.