I reviewed the history, it seems you are having chronic headaches
. Since it is responding to amnetrypteline this is migraine
. It is not compulsory to have symptoms like nausea
. sensitivity to light or sound in all cases of migraine.
These symptoms are seen during the aura phase and can be seen in majority of cases.
Since the headaches are chronic prophylactic drugs like flunarizine
can be considered for use.
Hence I advice you to consult your doctor for examination and treatment accordingly.