Haha I just had a talk with my distant cousin who's a doctor. We had a long convo, and he instructed that from now on, one of my meals daily should be a fast food like Macs.

He assured me that I'll be fine.

I rather skeptical about this idea, but I just went on the weighing scale again and realised that I'm back to 58kg. Sigh, but when you have such a stubborn body, maybe it is worth a try.