Is there any caffeine sensitive people like me?

Aug 6, 2019

So I drank a cup of bubbletea yesterday at 2 pm. I couldn't fall asleep the whole night, and now it's already 9:30 pm and I still don't feel very sleepy. I'm at around 30 hours without any sleep. 

Normally I need 7 hours of sleep per day or else I get really tired.