Ive been getting headaches with memory loss for months now, nothing shows up on mri's or cat scans,is it possible for a brain tumor not show up on mri's, my aunt died of one so its in my family, my father had altzhimers, im 60, so why the memory loss?

TIA (Transient Ischemic Attacks) can occur when a small clot blocks one of the arteries in the brain causing headaches and memory loss. It would not necessarily be picked up on a regular MRI or CT. Follow up with your Dr and discuss the option of having angiography done to determine if you need treatment for TIA's with blood thinners.

Early neurodegenerative disorders, such as Alzheimer’s may not show on imaging and establishing with a neurologist early may help as neurocognitive tests are best for diagnosis. Expanding the differential diagnosis to other conditions would also be wise. Stay in touch with your primary care doc, who will be able to coordinate further workup.

Do not worry about brain tumor, as the imaging has excluded that possibility. You could ask your doctor if the MRI showed any signs of microvascular angiopathy or prior strokes. Get neuropsychological testing to evaluate cognitive or emotional issues causing memory difficulties. Blood studies can assess vitamin, infectious, and metabolic causes. Medication may be problematic. Lack of sleep?