Stomach hurts nausea headaches dizzyness and some chest pains what could it be had a hysterectomy fell on my stomach a few days after wards it had 12/?

Reflux issues.: Reflux esophagitis is a condition that causes symptoms like chest discomfort, nausea and can also be causing headache. Hysterectomy and falling on the stomach can have a correlation and needs a good examination of the stomach. If the stoch examination reveals no problems then most likely it is reflux issues. See your doctor as soon as possible and good luck.