Have you had the rash biopsied
The redness from rosacea can look a lot like a malar rash - sometimes even a dermatologist has trouble telling the difference. Although it isn't usually done as part of a lupus workup, it is possible to have a small area biopsied just to make sure it isn't lupus-related.
The fatigue from fibromyalgia can be extremely severe and hard to manage. if your doctor is sure you have fibro, it might be helpful to visit someone who specializes in treating fibromyalgia. Unfortunately, many doctors tend to underestimate the fatigue and disability associated with fibro, and don't offer much in the way of treatment.
Anemia is one cause of fatigue that is often overlooked in women. Women who are having monthly menstrual cycles can develop iron deficiency anemia from blood loss. This type of anemia can be diagnosed through a blood test. There are other forms of anemia that are caused by other medical conditions.
Chronic fatigue syndrome can also cause severe fatigue that doesn't improve even with rest. Chronic fatigue is basically a diagnosis of exclusion, once the doctor has ruled out other physical and emotional causes of fatigue.
Have you talked with your neurologist about your fatigue and other symptoms? A severe head trauma can cause effects that may last for years, including depression, fatigue, cognitive problems and recurrent headaches. With your medical history, it's important to work with a competent doctor to determine if any of your current symptoms are related to your past injuries.
I hope you are able to find some answers soon - I know it is frustrating when you know something is wrong but nobody seems to take you seriously.
Shauna, are your thyroid levels checked regularly
Your dosage of thyroid hormone might need to be adjusted