When the pain foes come it feels like i bern kicked in my balls been having this pain for yrs now and it sometimes drops me to the floor?

Kidney stone: Your brief description of sudden severe pain in the groin and testicles is suggestive of a stone in your urinary tract, ureter. Go see your physician for further evaluation.

Pain for years?: You need to see a urologist. Cannot imagine you have had this all this time and have not sought out medical advice. If you have been seen and not able to be diagnosed, then get a referral for a second opinion. Sounds awful.