Hi I can see that you are suffering a lot. It is more likely that you suffer from stress related disorder and anxiety. Good thing is that it is treatable and you can get better. Please consult a Psychiatrist.
Next Steps
do consult a Psychiatrist. try relaxation techniques. regular walking, meditation and focus on physical fitness.
Health Tips
avoid smoking and drinking alcohol. avoid excessive caffeine. don't take unprescribed medication. try to watch you tube clips on Jacobson progressive muscle relaxation techniques and guided breathing and meditation.