Go to the top posting, lupus resources and you will find a link to possible symptoms which you can compare to your own. Lupus is the disease with a 1000 faces and can be difficult to get a clinical diagnosis.
You mentioned falling. Do you have any significant muscle weakness? Difficulty getting up and down from chairs, toilets, climbing stairs, raising your hands overhead, or swallowing?
Make sure you write down all your symptoms, no matter how insignificant they seem to you. Also write out your questions for the doctor. All of this can be quite intimidating and you can easily overlook something that could be important. I keep a health log in a spreadsheet with all sorts of pertinent information. No way I could ever remember it all.
Mixed connective tissue disease (systemic lupus, scleroderma, polymyositis), Raynauds phenomena, Hypertension, Barrett's syndrome.
Meds: prednisone (7mg & tapering), 150mg imuran, lisinopril 40mg, maxide 37.5/25mg, norvasc 5 mg, folic acid, potassium, aciphex 20mg, multi vitamins.
Maintain your optimism and you can beat the odds.
"Although the world is full of suffering, it is also full of the overcoming of it." Helen Keller