After prostate cancer operation does a man lose his sex desire

About ten years or so ago I went to the doctor and asked about Prostate cancer screening. He said I was too young. Besides being over worked under paid and uninsured I have a pain in my scrotum and it feels like I have an 8 ball in between my crotch. I have been doing a lot of heavy lifting and I am exhausted. Everything works fine down there but I am very tired. A friend of mine had kidney ...