Hello, This may be part of your anatomy and more pronounced with increased pressure. Please make sure to monitor your blood pressure and rule out high blood pressure that requires medical attention. Consider mentioning this to both your physician and dentist at your routine visits. Most likely this condition is of no great concern. Monitor for changes. Stay well hydrated and make sure that you do not have any vitamin deficiencies or imbalances. A clinical exam of the condition would provide the best diagnosis. There can be certain conditions such as a vascular malformation, deposits on vessels restricting bllod flow, tumor or cyst. Do you have any habits that may contribute to this reaction in so far as being an irritant? Try some anti-inflammatory medication to reduce discomfort. Tylenol or Advil should offer some relief. Avoid irritants such as smoking, alcohol and acidic foods as well. Thank you for your inquiry.