Can you cry and stress yourshelf out and cause death?

Broken heart. The best description of this calledbroken heart syndrome. The mayo clinic has a good description. Broken heart syndrome is a temporary heart condition brought on by stressful situations, such as the death of a loved one. People with broken heart syndrome may have sudden chest pain or think they're having a heart attack. These broken heart syndrome symptoms may be brought on by the heart's reaction.
No, but... Getting worked up emotionally cannot itself cause death despite "pop" notions of "dying of a broken heart." however, being trapped in impossible interpersonal / life situations, or not having optimum living skills, or having a neurotransmitter mood disorder can make life a living death. Get with a knowledgable pastor, physician, counsellor, or reliable friend -- you should not be suffering so.