For some reason, i don't fall asleep easily during mid day. Even though i'm not doing anything and only had say 4 hrs of slp the previous night. I guess this is good and bad ba. At least i won't get caught for sleeping at work.

But today... I don't know if anyone has experienced this before. Whenever i feel too sleepy and try to take power nap in the afternoon, i would usually wake up with a god damm terrible headache within a few minutes. It usually occurs at one side at the back of my head and lingers till the end of the day.

Googled but dun seems to find a good answer. Anyone knows more about this email me pls.