Conversation: The conversation between human and AI assistant.
[|Human|] Hello, I have felt my pulse in my head, primarily on the left side for three weeks. Not only can I feel it, I can hear it. It is so loud that it s hard to concentrate on other things. It doesn t hurt like a headache. I have also had a drastic change in my vision in the past two months. I am able to sleep at night, but as soon as I wake up, the first thing I am cognizant of is the pulsating in my head. It is getting worse instead of better. I have a history of having had a meningioma on the left cerebella lobe peripheral, 2004. I fear this could be a sign of another brain tumor. Are there other things that could cause these symptoms?
[|AI|]  Hi, I had gone through your question and understand your concerns. Your symptom leads more towards vascular malformation of the brain (probably rural arteriovenous fistula) so I suggest you to consult a Neurologist and discus possibility of imaging study of cerebral vascular structure with MRA or DSA. Treatment depends on these imaging studies findings. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions.