AFTER WEIGHT LOSS - looking "bigger" but haven't actually ga

Does anyone else have this problem? I've gone from 200 to 146 lbs this year. The last month or so I haven't been sticking to MFP as much because I'm at my goal. YES, I know it's a lifestyle change - you don't need to tell me. I still eat a lot better than I used to and I still exercise. I just don't log my food and I don't stick to the 1,400 calorie limit like I did on MFP, I eat around 2,000 a day now. In the last month, I've managed to maintain my weight (I actually lost about 4 lbs over the month of May) but I look a lot fuller in the stomach area. My hip bones were a lot more pronounced around a month ago. I also feel my thighs have gotten fuller and I feel my face has filled out a little. I don't know what it is. I've not put any weight on so it can't be down to weight gain - I was thinking it could be due to the fat content of the food I've eaten because I do eat more "unhealthily" now eg. I will have a burger or pizza now and again whereas before I would cut those sorts of foods out to one serving a week. Any advice would be appreciated!