Wow...excuse me a minute while I take in what SW Ann shared...150 pounds!! Congratulations. That is remarkable!
And Joy, looking at you, I would have imagined that you were always your slender self! In your photos you look like someone who is "naturally" slim. (Whatever that means...and boy, do I know how deceiving that whole idea is!) Anyway, you look great, so congrats.
Claire...twins again...I lost 36 lbs, too!
Also, like Claire, my shoe size stayed the same.
Mochi, I vote for team low heel (as in one inch to 2.5 inches). I have never been able to wear ballet flats because I have narrow heels and high arches so the shoes do not stay on my feet. But I've never liked wearing high heels, either, because I'm a big walker and they're just not terribly practical for someone who spends hours on her feet.
Also, at my higher weight, I found walking on narrow heels terribly precarious. My balance is not the best.
Since losing weight I find that on those occasions when I do wear heels I am much more comfortable in them and feel more stable, even on narrow heels. I don't know if that is a function of weight loss or of all the exercise I have done.
It does make sense that the heavier you are relative to your foot size, the more pressure the balls of your feet would have to bear in heels. So losing some weight might offer some relief. Insoles and buying extremely well-fitting shoes also helps.