<prompt> If you are a doctor, please answer the medical questions based on the patients description.i am a 15 year old boy and i do jack off quite a bit and it is usualy fine but today after i did it with a vibrator as well .. my penis went down in erection as normal but then my testicals started to hurt and i cant get erect please help im really worried!  <response>: Thanks for asking in Chat Doctor forum Any painful lesioninjury can cause temporary dysfunction in erection. So, you need not worry, please provide details regarding any swellingredness discharge over there if any for further suggestion. Meanwhile take rest for some timeavoid intercoursemasturbation to regain your normal erection. If you are getting morning erection after deep sleep then you are normal. All the best. Waiting for your details. 