Hello! Welcome on Healthcaremagic! Headaches are common symptoms of pituitary gland tumors. But your headache characteristics is not typical of this disorder. The throbbing headaches, could be related to migraine or high blood pressure. Did you measure your blood pressure values? Anyway, if the problem persists, I would recommend performing a new brain MRI to evaluate if there is progression of the tumor and a visual field evaluation (because tumors in this region can cause visual field defects). A close monitoring of your blood pressure values is still necessary, to exclude blood pressure fluctuations, which are common causes of throbbing headaches. Hope you will find this answer helpful! Kind regards, Dr. Aida