Kunal Sood, MD on Instagram: "Pulsatile tinnitus is a rhythmic buzzing or whooshing sound that matches your heartbeat. It often happens when blood flow near the ear becomes turbulent or louder than normal. Possible causes include: 💓 High blood pressure 🩺 Anemia 🧠 Increased intracranial pressure 👂 Middle ear fluid or nearby blood vessel changes While most cases are not dangerous, a new or one-sided pulsating sound should be checked by a doctor to rule out vascular or pressure-related issues.