How often do you exercise and are you eating enough? I say this because from my own personal experience I put my body into starvation mode because I was burning so many calories and not eating enough. I was only eating 900 calories per day before I spoke to my nutritionist who told me I need to eat a lot more for the amount of exercise I was doing. So today since I will be going to KM class I will eat around 1400 calories. Get plenty of water, 64oz or more. And I cannot stress enough about getting enough protein. I get around 100-120 gms of protein per day. The recommended amount is 60-80 for weight-loss but since I lift weights 3 times per week among all the other stuff I do, I get 100-120 grams per day. More veggies and fresh fruit, less bread or starchy foods. If you are gonna have something with a lot of carbs at least let it be good carbs like oatmeal. None of the cleansing diet shit. It's shit, don't do it.All its going to making you do is lose water. Your body needs water. Same with fast food, it's shit don't eat it.
I'm not saying I'm an expert or anything. Just giving your some helpful tips.