Although fibromyalgia isn't classified as an autoimmune disease, it shares symptoms with autoimmune diseases, such as rheumatoid arthritis, hypothyroidism, and lupus. Those who have post-traumatic stress disorder, or PTSD, have a higher incidence of fibromyalgia as do those who are obese. Fibromyalgia often occurs with:
- Arthritis
- Celiac disease
- Chronic sinusitis
- Chronic fatigue syndrome
- Depression
- General anxiety disorder, or GAD
- Interstitial cystitis, or IC
- Irritable bowel syndrome
- Migraines
- Myofascial pain syndrome
- Temporomandibular joint disorder, or TMJ
Symptoms of fibromyalgia are often misdiagnosed because they mimic the symptoms of other disorders and have the same triggers.