I Had An MRI On My Head Last Week Which

I had an MRI on my head last week which my ENT wanted. My ears had no problems but he found that I had blood vessels all balled up in my brain stem. It has a very long complicated name I can't remember but said it's inoperable and controls important things in my body. He said if one of the blood vessels pops it would no t be a good thing at all. I am seeing a neurologist soon. Is there anything that can be done to make the blood vessels less dangerous? I am really scared.