Ct of head ystrdy showed sm hole up lft. doc said indicative of brain cancer. said it'd be bad if it hasn't always been there. then left! next step?

You should see a spe: A brain specialist(neurologist or neurosurgeon) should be consulted to check you and guide you further. A brain MRI is often a better test to determine the nature of the lesion that you have, especially if there is any concern that it could be brain tumor.

MRI to better: Evaluate. Ct is a good first step, but a contrast enhanced MRI provides much more information about the degree of enhancement, presence of edema, and is optimal for surgical planning if it is in fact a tumor. If tumor detected, make sure to be evaluated for treatment at a high volume academic hospital as outcomes are tied to experience.