I am a 77 year old man and the last 5 days I have had sex and have only been able to ejaculate one time last Sunday then Monday I could not and Tue I could not ejaculate. I noticed after having sex for a half hour my left testicle was sore to my touch and it is the same Wednesday. Is this like blue balls or what? I have noticed if I wait at least a week I have no problem ejaculating. Perhaps I should wait at least till the soreness goes away!