About a year ago i was sat down at work and when i stood up i got a very bad pain/twinge in my tesliculs witch lasted about 30 mins and then was fine.Now when ever i sit on a hard chair or any kind of chair,when i stand up it feels like my testiculs have gone dead for a few minuits then they are fine again.It feels like when you have sleept funny on your arm and it goes dead.I am an heathy slim guy so they are not been skwashed