I have been recently diagnosed with a 5mm colloid cyst without hydrocephalus. I had gone to the doctor because I had excruciating pain in my right side of the head. He told me it was stress induced headache and gave me xenex and elatrolet. But he said to take a CT scan to be sure I didn't have anything more serious. In the scan they found the cyst but the doctor insists it isn't dangerous and it isn't responsible for my headaches. He says to wait and take a CT scan or MRI in a year or so. Do you think he is correct in this or should I be more scared about this thing?