Testicular pain since 2. 5 year.

I am 23 year male .I am s testicular pain since last 2.5 year. The pain first started after masturbation after 2 month during these 2 month their is no any night fall.after that I performed ultrasound KUB. whole abdomen.scrotum and urine blood CBC semen culture . MRI spinal cord screening . Montex test all these test are normal .nothing come out .after this problem I am also suffering from ED also .testesrone 4.75 is normal .due to this problem I am very much concerned about future and still unmarried male. I never performed sex with anyone .I am mastubated regular once a week .in the testile their is no hydrocele.ni vercose no cyst no torsion .no epididymis nothing but pain is very mild I cannot run properly with the speed . Previously I have gone through Q LASIK surgery for the vision in that time operations was successful. Now eyes is ok . Many time I feel weakness in the body .giddiness after running. please tell me what is the reson behind it and what is the name of disease