I had lost a wee bit more weight than that before my clothes (trou) started to get baggy on me. Then not long after I was at a Dietitian appointment, I stood up for her to measure my waist; my trou fell down totally unaided
The Dietitian told me a long time after that often the belly is the last part to reduce, but exercise (as opposed to walking) would take care of that. Even now, my waist isn't very much smaller than it was when I started my journey a long time (weight) ago. BUT I have gone from a NZ size 20-22 to a 12-14 or a 14-16 for trou. That is MUCH better than the 20-22. I haven't been doing the type of exercise to reduce the tummy either.