I was disagnosed back in December 2006 with a colloid cyst of the third ventricle. I have been to see my neurosurgeon several times (once a year) since I had my first seizure due to the cyst. My question is this; if it doesn't change in size and I'm doing "great" according to him, then why is it that I am still getting these god-awful headaches and stabbing pains behind my eye?