I need your help!

hi!..good day! I just did the Lemonade Diet , My weight was 76 kilos(160 somethiing) and after that, I was 65 kilos(150 something)..After 4 days, my body changed and I am worry because of the gain of weight.. really, I don´t know if I was wrong with something and for that reason my body and my weight are almost the same!...
Can you tell me if this is normal? Tweet