Hmm… Last week, my appetite was not as good as I would like it to be. Towards the end of last week, I lost some weight. It just happens sometimes. And sometimes, I can be hungry all the time. Anyway, I just find it difficult to gain weight compare to lose weight. I can drop 0.5kg to 1kg in a day but it will take me about 2 days to re-gain the lost weight.