According to http://dictionary.reference.com/browse/malaise
"1. a condition of general bodily weakness or discomfort, often marking the onset of a disease.
2. a vague or unfocused feeling of mental uneasiness, lethargy, or discomfort."
Looks like malaise is a good term to describe what you are experiencing.
Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD (Lupus?), Osteoporosis, Anemia, Very Low Lymphocyte Counts (T-Cells & B-Cells), malabsorption/malnutrition, possible Lyme Disease (Igenex Lab IgM WesternBlot positive), etc.
Meds: Pulmicort, MaxAir, Injectable Vitamin B12, Herbs, Nutritional Supplements, Essential Oils, Homeopathy.