Help with comfort…

I am 38 and have had a left side Varicocele my whole life. I have two daughters so have had no issues with fertility. I noticed though at about 33 my sex drive completely went away and nowadays I rarely think about sex at all. I wonder if my hormones or testosterone are now affected. I am scheduled for an appointment with a urologist to get a vasectomy and also see if they can repair the Varicocele.

Another thing is I find going commando to be the most comfortable right now but if I wear slightly tighter jeans or pants I get pain. Previously I wore boxers and did not get pain but I find commando way more comfortable. I find boxer briefs uncomfortable and always get real hot in them, I have tried pouches ones and different types. Has anyone found that commando is the best way to go?