National Standards: Out-of-Pocket Health Care. Disclaimer: IRS Collection Financial Standards are intended for use in calculating repayment of delinquent taxes. These Standards are effective on March 28, 2016 for purposes of federal tax administration only.
The chemicals released by the body when an injury occurs or when the body has other abnormal processes taking place actually make changes to the nervous system. The types of changes they make are related to the type of pain you feel.
Its a stress thing when your body is under stress it can go through physical pain. It happens with other emotions too not just missing someone. Anger and hate can cause you to physically hurt and even become sick. Stress is a major cause of many of the pains we go through.