Hi. Thanks for your query. You have got only mild pain in the testicles randomly, mostly when you are siting down. You are not sexually active at the moment hence you are thinking that this is not due to STD. You have a Physical in 3 days and wants to know : is there any specific question you should ask ... Not really unless there is : Varicocele Epididymo-orchitis Cancer / swelling. I would advise you the following as this is important for your future life too.: Ultrasonography and color doppler examination Clinical evaluation and physical examination by Urologist. Scrotal support Plenty of oral fluids. Surgery only if indicated and advised by Urologist.