as per the details u have submitted,
healed calcified granulomas
can be seen with
1. small blood clots
over period of time will get organized and they become calcified
2. parasitic infections mainly cysticercosis
3. or it may be a tuberculoma
before defferentiation about the cause , the size of the granuloma as weel as the any perlesional edema sorrounding will be important for differentiation....
so i advise you to consult a neurologist
along with your CT report..
but most of the times calcified granulomas are asymptomatic and they are detected incidentally, some people may get focal seizures
, some people may get mild headaches
but i cant attribute the present head ache with the calcified granulomas..
neurologist advise will help u in this regard..