Hi, I m 28 (173cm tall, 76kg) and I ve got a cold or a virus recently (almost everyone around me had it) and it seems to come and go (I have a very strong immune system, almost never been ill). I ve been using only propolis drops. I ve noticed a slight dull pain in one testicle, which moved to the other one after a few days while. Still haven t been to a doctor since I m getting better, but could you tell me if this is a reason for concern. Thank you