Hi.
I understand your concern .
It is not
migraine but its withdrawal of
nicotine dependance. Long term smoking and
bupropion therapy may cause withdrawal symptoms.
It is either psychological or physical.
It is common in intial therapy and gradually it will be resolved.
Stress , headche , fatigue , irritability are common features when cut down occur from heavy smoking.
Bupropion is excellent medicine to control craving from it.
Anti
anxiety medicine like
clonazepam will help to control withdrawal features.
Nortryptiline can also help.
Internal motivation is must and stick on abstinence may help you to achieve both physical and psychological good health.
Follow your doctor's advise.
Still if you have a query then feel free to ask
Thank you .