Did you get a letter saying you'd have to go before a judge or were you just thinking you might have to?
In some cases they do that when they don't feel they have enough proof in your medical records and don't want to deny you because they feel there is more evidence if they gave you more time to provide it, but sometimes they just make the decision and send you a letter telling you the determination. If you have to appeal a turn-down then you have to go to court, but you might get it on the first try as long as you show a direct correlation between your disease and your inability to work. It also helps if your doctor is willing to back up you statements. I have known people who did a great job showing how their symptoms caused them to be unable to work, but they had a doctor who felt uncomfortable vouching for them on the more intangible symptoms like pain and fatigue, and those people had to do one of two things.
1) Have a long talk with their doctor so that he or she fully understood just how severe their symptoms were.
2) Or, if that didn't help, then they had to find another doctor who understood the disease more fully and was more familiar with the process of applying for Disability.
When filling out a questionnaire be sure to think carefully about any of these instances and include details;
1) Have you ever been fired from a job related to your disease?, and explain, elaborate on how it was related.
2) Have you had to call in sick more than the average person?, and go into why, what symptoms you were having.
3) Have you had to leave work early because of your Fibromyalgia, and what symptoms made you have to stop work that day (or days)?
4) Has your fibromyalgia restricted your overall activity? Do you have to lie down more? Can you not sit or stand for long periods?
5) Has pain, brain fog, and/or fatigue made working on a consistent basis (8 hours a day, 40 hours a week, long-term) impossible because your disease makes you unable to concentrate and/or finish tasks?
If you have anyone in your life who has witnessed any of this, have them write a letter on your behalf and provide it to Social Security. If it's a past supervisor, then that is even better. If any of this is in the doctor's notes that will help as well.