i’m chinese and i live in China and i work in an business office so i always finding myself everyday in Black 5 Inch High Heels Stilettos at work and always wear 6 inches going out shopping & hanging out with friends. Which one and height of heels you wear most?

I work in an business high office building and our dress code for ladies is a skirt suit or dress suit and high heels stilettos so i usually wear 5 inch stilettos pumps to my office, i usually wear them all day and i have no problem. But when i’m at home sometimes when i walk my feet are walking like they are in heels but i’m not. Why is it making me walk like this ? Should i go get checked out by a doctor ? Is it abnormal ? Please help !