I have pain and sorenes in balls i lift 50-80lb box everyday my groin area is very hard hernia?

This could be hernia: This very well could be a hernia. At first abdominal contents can push through the weakness or defect and then return spontaneously. However, these contents which may be bowel, omentum, bladder can get stuck ( incarcerated) and progress to strangulation where the viscera are damaged because the blood supply is compromised. This is a true emergency requiring surgery.