Unlikely: Much more likely that you are sensitive to caffeine. If it persists, talk to your doctor.
Answered 11/24/2013
5.6k views
Sensative: Caffeine is a vaso constrictor (makes vessels smaller). You may be very sensitive to caffeine or you may be taking in more than you should (too much coffee in one day). I would reduce my caffeine intake and be aware that you may get a headache from not taking in as much as you used to. Tea has less caffeine and you might try tea if you need the caffeine.
Answered 8/20/2013
5.6k views
Allergy reaction: Head ache , migraine is very common allergic reaction to caffeine, see your doctor, stop drinking coffee tea and cola which contain caffeine , before blaming aneurysm, and brain tumor.
Answered 12/9/2013
5.6k views
Neither likely : At the age of 23 it is unlikely to be either of those and most likely a side effect of the caffeine. Try and cut back in the amount of caffeine you have and see if it improves the headache.
Answered 11/24/2013
5.2k views
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