The best place to begin is to make an appointment with your primary care physician (PCP). It is important to rule out a medical explanation, especially because you have a history of a brain tumor. As you mentioned, some of your symptoms may be attributable to the lingering effects of the brain tumor.
When you visit the PCP, provide a detailed report of your medical and psychiatric history. Also report your current set of symptoms. The more detailed you are about that information, the easier it will be for the doctor to assist you. You were very detailed in your letter. It might help to bring the letter to the appointment. Prior to the appointment, prepare a list of your symptoms and the questions that you have. Having a list ensures that you won’t forget important details.
Your PCP may suggest that you undergo a variety of medical tests. He or she may also refer you to a psychiatrist, a neurologist and a psychotherapist for additional tests or evaluations.
You alluded to the fact that you are either currently using drugs or you have a history of using drugs. I am not sure if you were referring to prescription drugs or to illegal drugs. Illicit drug use can exacerbate and in some cases lead to the development of psychiatric symptoms. It is important that your doctor is aware of all past or present drug use. You may not want to reveal that type of information to your doctor but missing facts can result in an inaccurate diagnosis and subsequently, an inappropriate plan for treatment.
It is important that you are evaluated as soon as possible. Start with your PCP. I hope this answer helps you to know how to proceed. Please take care.
Dr. Kristina Randle