Laparoscopic double inguinal hernia surgery 4 1/2 months ago still real sore right testicle. Recently start feel discomfort groin& pubic area can do?

Give it more time. Sometimes the blood supply to the testicle is slightly compromised due to swelling, etc. Good scrotal support, non steroidal medication is what is needed. And more time.
Chronic pain. I recommend the use of nsaids and heat to the afflicted area . (nsaids are aspirin, naproxen, and acetaminophen.) then, contact your surgeon. There is an entity called "chronic pain syndrome." as it sounds, it's chronic discomfort after hernia repair. Not common, but it's there. If pain persists after one year, despite management, the graft and tacks are removed, and rerepaired. Good luck.