Conclusion
Testicular disorders or diseases no matter which requires immediate medical attention. Although some are more severe than others, they can all be treated. The earlier you discover them the higher your chance of recovering. Your doctor will first make a diagnosis to know what your condition is, then treat you accordingly.
References
[1] https://www.who.int/news-room/fact-sheets/detail/infertility
[2] https://www.webmd.com/digestive-disorders/digestive-diseases-nausea-vomiting
[3] https://kidshealth.org/en/teens/tse.html
[4] https://www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/symptoms-causes/syc-20353949
[5] https://medlineplus.gov/pituitarydisorders.html
[6] https://www.mayoclinic.org/diseases-conditions/meningitis/symptoms-causes/syc-20350508
[7] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2701485/