Absurdly sensitive to caffeine?
So I usually do not drink coffee or ingest caffeine in any way. I stopped years ago due to an extremely high sensitivity.
Today, I was at work and I found an old friend that is working near my office, so we arranged to meet at 13PM in a snack bar so we could talk.
I drank a big espresso (somewhat like 80ml).
12 hours later and I still can't fall asleep (it has been like 6 months since the last time I put coffee in my mouth).
This is exactly the same thing that happened to me in the past when I used to take 200mg of caffeine in a pre workout supplement at 5:30AM and I couldn't sleep until like 12AM.
Is this hyper sensitivity actually a real thing or this is pure psychological?