Biologically, how and why does “stress” manifest itself as physical pain, aches, gastrointestinal issues, etc?

Question

I don’t understand how something like an actual ulcer or a headache could be caused by an “emotion” like stress.

In: Biology

Answer 1

Even doctors don’t understand it. I’ve been dealing with it my whole life. Doctors have written me off as a hypochondriac or done things to me which have made it worse in an attempt to cure it.