My brain feels weird. It happens every few days, usually it lasts for a few hours. I get dizzy, foggy headed, balance issues and then it goes away and I feel fine. I've been to the doctor and had blood tests, an EKG and everything is fine. I don't have insurance. Does anyone know how much an MRI or cat scan costs? I think my brain is being ruined or something and I don't know what to do.