Could it be something bad if I have testicle pain?

Torsion or Epid'itis. Acute testicular pain must be considered a twisted testicle until proven otherwise and demands emergency care to avoid loss of testis. Other sause of severe pain is epididymitis, an inflammation of epididymis and underlying testis, needs rest, ice pack and antibiotics. Other causes not serios other that hemorrhage into testis tumor. Scrotal ultrasound can differentiate, . Get seen asap. Good luck.