Hi @pamelacelia and welcome to Mayo Connect! We are glad that you have joined us. Since your dad has had headaches, it is probably best that you keep trying to get him in for the CT scan or perhaps a neurologist appointment. Neurologists are the best docs to diagnose both memory and headache problems. Is your dad having any other problems, like falling, balance, or gait problems? We wish you well as you help your mom search for answers. Keep in touch, we care!