I will do my best to answer, but understand I DO know what it used to be like to be healthy, work 65-80 hours a week, and still have energy for my dog, horses, and outdoor sports or softball/basketball. I used to be “normal”. My version of it anyway.
As for the 10 year old CT machine… that’s not too old of a machine. Many are still used at 20-25 years old. They just get sold to smaller hospitals as the big dogs upgrade. The best image won’t do a thing if the radiologist doesn’t read it properly. Understand the issues we face are very obscure and so they are often missed if they do show up.
In short, skip ahead to the big dogs. You will keep going in circles with local yocals. Once big dogs have weighed in there is credence to your dxs.