Hi, Gary - and welcome. I'm not happy to see another person receive an AN diagnosis but at least you've discovered a site and message boards that can help you through your 'AN experience'.
There are numerous theories floating around that attempt to pinpoint at least one distinct cause of an acoustic neuroma development. The 'cell phone' theory is very popular - except that ANs were found 100 years ago during autopsies and when surgical med students used unclaimed cadavers to practice on, making the 'cellphone theory' difficult to take seriously, although some folks are absolutely convinced that it is a direct cause of AN development as well as brain cancer and, since teenagers seem to live their lives with a cell phone next to their ear, probably, acne.
I'm certainly not a scientist or a physician but I 'm highly skeptical that AN growth has much of anything to do with noise or that the benign tumors are precipitated by things going into your ear. These tumors begin with the sheath that covers the 'hearing nerve' and are not directly exposed to the environment, although they are exposed to sound, which they transmit to the brain. Frankly, I don't have a huge interest in the cause of ANs and if we can't find the cause for most cancers, I doubt we'll find the true cause of AN development. Still, I hope we do, although I don't expect to see it in my lifetime. I see nothing wrong with speculation but I'm not all that interested in engaging in it when discussing ANs. Others may not be so reticent.
Since learning the exact cause of why ANs develop is beyond our grasp today, I would suggest that for now, you consider focusing on how you'll address your AN. That should take up most of your time for awhile. The ANA, this website and, especially, our members, all stand ready to assist you with information and support. I'm sure some of our members - who may have strong opinions on the issue - will be more than willing to speculate on the cause of acoustic neuroma development, if you wish. I'll pass on that - but once again, welcome you to the forums and I wish you all success as you move forward with your AN treatment.
Jim