Diagnosed w/ precocious puberty in 95, i had a ct scan is it possible they missed a tumor suffer from daily headaches, nausea, blurryvision all recent?

Anything is: Possible, although unlikely. You don't need to have a visible tumor to have hormonal problems -- many are too small to visualized, but can often be detected with lab studies, exam, etc. Check w/your doctors.

No: Your diagnosis was made18 years ago when you were only 5 years? I doubt very much whether your present complaints 18 years after the ct scan may be related to a tumor which has been present for that period of time.

MRI: Precocious puberty and headaches with blurry vision suggest a problem in the pituitary gland. My most pressing concern is a tumor of the pituitary gland. Ct is not at all useful for looking at tumors in this area. Mri (specifying a pituitary protocol) should be done as soon as possible with evaluation by an endocrinologist, ophthalmologist (to assess your visual problem), and a neurosurgeon.

Need new study: Very small pituatary adenomas may have been missed due to very small size. Discuss with your doctor having a new cat scan or mri. Many advances in imaging since 1995.