### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have been dissociating, derealizing, and depersonalizing in episodes in the past year or so. They begin with a slow descent into derealization, followed by a slight headache seemingly toward the front of my brain. In the worse episodes one of my hands goes numb and then it switches to my mouth. Sometimes these episodes are slight, and only derealization and headache are present, while in the severe episode I am very detached from everyone around me and have issues processing language. During these it is also difficult for me to write coherently, often misspelling words I know. I also experience visual distortion, where its almost like I lose my peripheral vision, and long words written down are cut short when I tried to read them. I have a neurologists appointment in a couple months, but I m worried I may need an MRI sooner

### output:

Hello! Thank you for asking on Chat Doctor! I read your question carefully and understand your concern. Your symptoms may be related to partial epilepsy seizures or a conversion disorder. I recommend consulting with the neurologist for a careful physical examination and an EEG. If suspicions are raised, a brain CT scan or MRI may be needed to exclude an intracranial lesion (tumor, vascular malformation, etc.) of your symptomatology. Further lab tests (complete blood count for anemia or infection, kidney and liver function tests, fasting glucose, thyroid hormone levels, blood electrolytes), should be performed to exclude possible metabolic causes that may mimic a similar clinical scenario. If all the above-mentioned tests, result normal the most probable diagnosis would be a conversion disorder, which would need a psychiatric consult. Hope to have been of help! Best regards, 