Unfortunately, I do not know your symptoms before you got investigated. Spermatocoeles are retention cysts in epididymal head with milky fluid containing sperms. These may vary in size widely, and are usually asymptomatic. You may have another inflammatory pathology too in epididymis, which may be causing pain. Surgical correction of varicocoele is usually unnecessary, but may be done if very large, or has become infected. Surgical correction of spermatocoele does not treat infertility, but is not associated with any sexual dysfunction. Dull scrotal pain may persist even after its surgical correction.