My mother eventually died of "stress", with her immune system failing her.
But... stress and it the anxiety it becomes is treatable. My mother -- and her doctors, much like doctors today-- did not realize that stress was behind many of her physical ailments, including a "bad back", for which she had a failed surgery, migraines, and Sarcoidosis and many other things. My mother, since her youth, had learned how to react to stressful situations in the wrong
way. This carried with her her entire life.
Anxiety and stress are learned
behaviors, so once a person recognizes that their reactions are not what they should be, or develop classic anxiety symptoms, then you can start to "unlearn" the behavior. It is not an overnight process. I inherited the same bad behaviors; or rather, I learned by observing. It got me into severe, life-threatening trouble and the wish to end my life at my own hand due to the severity of the pain. Fortunately, I found help; not in a live doctor or threapist, unfortunately, but by a long dead one. God bless you, Dr. Low, wherever you are....The Wisdom of Dr. Low
has some direct answers to this: http://youtu.be/oSdSCvJwOzU
Peace, no matter what the situation, is under your control -- with practice.
Good luck everybody!