question: I am missionary in Guinea Bissau, therefore, i cannot go to the doctor. I have been having mild chest pain for about 3 days...what could be the cause..I am 37, and work out everyday of my life, am very physically active, am not over weight, and have never had health problems.  I do not drink, have never smoked, never done drugs of any kind... Our diet here is very basic. Fish and rice and root vegitables every day.