No it's not normal.
Quit caffeine. (to deal with the withdrawal symptoms, drink sugar-free hot cocoa. It has enough caffeine to prevent withdrawal but not enough to give you a kick.)
Drink zinc.
Vipassana meditation.
Deal with whatever underlying psychological issue is bothering you, if that's the case.
You may also have an underlying medical condition such as hyperthyroidism and phaechromocytoma, you can ask a doctor to give you a good checkup.
Quit caffeine. (to deal with the withdrawal symptoms, drink sugar-free hot cocoa. It has enough caffeine to prevent withdrawal but not enough to give you a kick.)
Drink zinc.
Vipassana meditation.
Deal with whatever underlying psychological issue is bothering you, if that's the case.
You may also have an underlying medical condition such as hyperthyroidism and phaechromocytoma, you can ask a doctor to give you a good checkup.