Mel,
Welcome to our neck of the internet woods. I think regardless of whether your husband thinks it's hypochondria or whoever else, you should get an MRI with contrast. Tinnitus and hearing problems can be attributed to MANY things other than an AN, and I hope that in your case it is something else treatable. But, do know that we'll all be here to help answer questions about treatment, symptoms, etc... if it turns out to be an AN or not.
You shouldn't just pass it off as something else, you should get the MRI to be sure. Like you, had had tinnitus and sudden loss of hearing and I chalked it up to wax or something. Looking back, there were so many "hallmark signs" over the years but each were attributed to something else. For example, that last year before diagnosis, I had 4 sinus infections... chalked that up to it just being a crazy year of weather making my lifelong sinus problems act up (ironically, since surgery, I've had very minimal sinus issues and not one sinus infection). My wife complained of my not hearing her as well and I sluffed it off. Little did I know but at the time of diagnosis I had a 3cm AN growing and putting pressure on my brainstem. After awhile, many things started adding up..
I say that not to scare you, but to let you know that you shouldn't just sluff it off and chalk this up to something else. You have a way to know for sure if it's an AN.. Do it.
Welcome to the forum..
Regards,
Brian