I am losing weight - So WHY are my feet getting BIGGER?!

ChunkiChica

Like the title indicates, I've lost between 23-24 pounds in the past four months. As far as I know, I am a Women's (US) size 9.5W (Wide). Because half sizes are harder to find, I frequently go up half a size to 10. The width on a 10 generally suffices. But I went shoe shopping yesterday after trying on my winter boots (10W), which no longer fit my feet-like at all. I ended up purchasing a size 11 boots, which are a bit long for me, but the width is right. I believe my foot is getting even wider, but this has not been a problem since I started LOSING the weight. Any ideas as to why this is occuring?