Ok yes yes I'm too young for this some would say. I've been a caffeine addict for 11 years.

I've come off it several times yes but the black elixir of awake calls my name and I must answer.

Withdrawal
Painful headaches
Tiredness
Shakiness
Weak limbs

All if whom are withdrawal symptoms.
I hate them it's miserable meds don't help only the elixir helps and when coming off it I suggest you slow your intake gradually beside going cold turkey is hell.