Don't take the word of all doctors as gospel. This disease is such that many doctors don't know how to treat it but will act as if they do. Search for your own answers as soon as you know what is wrong, and find a supportive doctor in the meantime.
By best advice to those newly diagnosed is this: don't wait, and don't be afraid. When you know what it is, find a doctor and push to get answers. For my the leading physician in the field took too long, so I found another. When I was told surgery was an option, I practically threw myself on the table. I had seen and heard enough from other patients that fear of surgery had made them wait too long, and now recovery was much harder.
Another point is that the symptoms tend to flare and go. When on the low end you, you will think it's fine and to just let it go. Each flare can get worse, and the cysts can even cause bone erosion even if you don't always feel it. Dont stop until the symptoms are unbearable, but be proactive for yourself.
Finally, be brave and surround yourself with friends and family to help you float through the chaos.