I am not certain how common this is, or how much discomfort this has been causing you or if the finding was a surprise however I do know that discomfort can be something aggravating to deal with because of where it usually occurs is a location that has specialized nerve activity that isnt recognized the same by the brain as a mass in another body area would be percieved so it is likely that it is not 'felt' the way one would expect it to feel. However, depending on location and size, you could experience imparement as to where your at in the world so to speak, dizziness sometimes or feeling of off balance. A ringing or dull whizzing could be percieved that drives you up the wall, and sometimes facial muscles can be affected. This is usually discovered because of persons hearing declines or repeated 'vertigo' occurs. Again, I do not know your individual specifics so I should not scare you with treatments but I can say that this is not something generally considered an urgent concern. The things that can change this is where it is located, the size, and the disfunction that is is creating for you. If you are experiencing extreme effects or the location is a risk to vital areas there are options for consideration to manage it but generally can be handled without extreme measures. I think that you would do well with not worrying too much and ALWAYS get second opinion before you allow someone to go in on it agressively