Over the past 48 hours, I've only managed to get roughly 3-4 hours of sleep. It's a problem I've been having intermittently over the past few years. There's no telling which night(s) would be the sleepless one(s) because it seems that they might occur without a warning any given night. Still, I've never had a full-month of sleeping-problem-free since as far as I can remember ; my first sleeping disorder occurred when I was in form 2 or form 3, yes, during secondary school. It had happened for quite some time now and I somehow more or less got used to it already. For one whole week, I might have no trouble sleeping at all. Boom, the next day, Im a night owl. My sleeping problems have affected my memories as well (which might explain the reason I suck at memorizing mathemathical formulas and history lessons. lol). My memories are very inconsistent towards what's happening in my daily life. Due to those sleepless nights, my mind are usually very tired and tends to lose focus quite easily. Thus, limiting/slipped the amount of data stored inside.
Apart from that, my body is also taking its toll from this very problem. Slow response, lethargy, poor eyesight, etc. There are days when I try to keep active and play some hoops but the effect is just so massive that rendered my body and joints too painful to even play the next day : not really like a 21-year-old.
I don't really know how long this problem would persist, but now I'm seriously considering some sort of sleeping pills to help me out. This has always been so stressful, but I hope one day it will be gone forever.