Why do I feel fatter when I’m losing weight?

I’ve been doing a great job at losing weight lately! I completely changed my eating habits and actually quite enjoy the feeling I get from eating healthy.. but I’m more insecure now? I could take so many nudes for my boyfriend before but now it’s rare.. I feel fatter than I was before. I don’t know why I feel this way or why I’ve been so self conscious of my body lately..