This is a little harder to answer. I'm not upset that you didn't take the zoloft. That only changes my thinking about the nail biting. :) i'm only s little unsure about what you call "fits" and "doomed to this uncertain issue." I hope I am correct in thinking you are talking about tmj as being the uncertain issue.
So, to try and answer your question, I think you need to be seeing both the dentist and a medical doctor (not the ent doctor). The dentist should be treating your tmj. He sounds like he is doing his part so far with the bite splint. If the bite splint was made recently, you will need to get it adjusted occasionally by the dentist.
A medical or family doctor should be treating the more medical part of any help you need, but it's definitely not the ent doctor. He just doesn't sound like he is doing anything to help you. Since you got the bite splint, all of your symptoms have been getting better. Am I correct? The stuffy ear seems to be the only problem that still bugs you on a regular basis. Well, that is one of the major symptoms of tmj and usually doesn't come and go like the other symptoms, but stays more often than goes. It's because the disc, which is probably out of joint slightly is causing pressure against the ear canal. They are amazingly close to each other so any slight problem in the tm joint is going to affect the ear canal. You don't know how many times I went to the doctors over the years because of my ears and have them say, "well, the ear appears to be a little red, but that's it." that's because nothing was wrong other than the jaw joint pushing against the ear canal a little bit. I almost had tubes put in my ears and that would have been a huge mistake. Thank god I get stubborn sometimes and just decided not to have the tubes put in. Stuffy ears is just something you have to learn to live with if you have tmj.
I do think that you should be taking zoloft or prozac though. You will be surprised at how much it helps you. The anxiety, the tmj, both will love you if you take one small dose every day. You really will feel better emotionally and physically. I do totally understand where you are coming from when you say you don't want to take meds. That's one reason I didn't take pain pills the first 23 years I had tmj even though I was in excruciating pain. I realize how silly I was now, even though I must admit that I am somewhat proud that I survived those years. They just could have been better years.
I did break down and start taking prozac about 10 years ago. That was initially for depression, but I ended up being blessed in that it helped my tmj by taking the pain completely away for about two years. It was a wonderful time in my life. So I do and will advocate meds, but only under a doctor's supervision.
That's where I think your family doctor should come into the picture. With your dentist working on the dental part of tmj (bite splint) and your family doctor working with you and the dentist with the proper medications, you probably won't even have to think about your tmj.
Is that what your goal is? I'm glad you and your wife sat down and talked about all this. It's very important to have your family involved in health issues, especially something like tmj which is so unusual. Too many tmj patients live lonely lives because no one can possibly understand what tmj is, what kind of pain is involved, what it does to our lives. Unless you experience severe chronic pain, you can't understand. But your family can still support and love you no matter what.
Regarding the hopelessness and morbidity issues - try having tmj for 25 years and be 51 years old. Two years ago my tmj decided to come back full force into my life and that's because big time stress took over. I had never thought about morbidity until then (i had also just hit that half century mark). It was an awful feeling and so depressing. You do feel hopeless when you think there is no help, no cure, that there is nothing that can be done.
I am finally getting out of this dark hole. A positive attitude is so important to succeed in this life and mine is coming back, thank god. Being active as you are is also great!! It will definitely help you cope with any pain, particularly tmj, so keep up the activity and the positive outlook. Don't let tmj drag you down. Get all the knowledge you can about tmj and beware of the different methods of treatment (most totally useless). Find support such as your wife, dentist and health boards such as this and keep working at keeping yourself as painfree and healthy as possible. Never give up. Take any medication you have to that helps you. Don't allow your pride to hurt your health.
I think you are on the right road. Continue seeing your dentist regarding the bite splint. See your family doctor and under his guidance, consider taking zoloft, prozac or valium for a short time at bedtime. Continue with your physical activity, wear your bite splint, use moist heat if any pain decides to sneak in, research tmj and braces, and talk things out with your wife. I will say here that if you need to talk with someone and you don't feel that your wife should be that person, there is nothing wrong with seeing a therapist of some sort. We all need an objective ear sometimes to hear us and give their educated opinion.
Take care. You are doing fine. I am glad to have met you. Sorry for this long posting. I'm a secretary, so I can just type forever it seems sometimes. I do mean it when I say to take care of yourself. Do everything you can to take care of yourself.
God bless...
Carol