Hi jils04!
You know when I was BF - I put on weight more than being pregnant. I had just the same stuff. I couldn't stop! I craved and craved! I had oatbran for breakfast and in two hours I had condensed milk sandwiches and could hardly wait till lunch. But the thing is when you BF your body needs more energy and reasonably you start to eat. For me the helpful idea was to eat little portions every two-three hours in order the glucose level in you blood be constant. Or you can count calories - it should also help. Or it can even be because of emotional tiredness - in that case good movie with a cup of green tea helps. I hope I could help you find your way of overcoming this.