Hello dear, Migraine,if diagnosed,is not a diagnosis based on CT scan,rather it is a clinical diagnosis in which patient typically have episodic hemicranial(on either side of head) headache,which is throbbing or pulsatile, usually associated with nausea,and increased on exposure to light or sound.It may be associated with aura( like vision abnormalities of seeing zig-zag or flashing lights).CT scan is normal in migraine.Topiramate,as you are taking is one of the good drugs for prevention of a migraine episode.If your frequency of episodes are reduced after taking topiramate,that is your result.You yourself judge the result.What copy are you asking doctor for?(Please specify).Increased density in nasopharynx and enlarged adenoids may or may not be significant to cause symptoms.For this you need to visit an ENT(ear nose throat) surgeon.I hope it helped.