Autoimmune Disorders in Stepfamilies

I've read quite a bit about how stress can affect your health, particularly with the development of autoimmune disorders where your body basically attacks itself. I'm wondering how many of us stepmoms have developed an autoimmune disorder since marrying into a family, becoming a stepfamily, or developed some other type of health problem?

For me, I have TMJ (caused by clenching my teeth when stressed, damaging my jaw), my asthma went from an annoyance to life-threatening, and I developed Hashimoto's Thyroiditis (along with nodules, goiter, hypothyroidism).

According to MedicineNet.com:

"Autoimmune disease: An illness that occurs when the body tissues are attacked by its own immune system. The immune system is a complex organization within the body that is designed normally to "seek and destroy" invaders of the body, including infectious agents. Patients with autoimmune diseases frequently have unusual antibodies circulating in their blood that target their own body tissues.

Examples of autoimmune diseases include systemic lupus erythematosus, Sjogren syndrome, Hashimoto thyroiditis, rheumatoid arthritis, juvenile (type 1) diabetes, polymyositis, scleroderma, Addison disease, vitiligo, pernicious anemia, glomerulonephritis, and pulmonary fibrosis."

This was just a few. There are over 80 autoimmune disorders.