Hello, I am a 17 year old who has discovered that I have a lump under each of my testicles. Normally they are not there, they seem to arise after doing rigerous excercise (mainly running). At first, I only discovered this re-occuring lump on my right testicle. Now I have it on both testicles (keep in mind the lumps are not always there, they seem to come semi-randomly every 1-3 days). I went to my family doctor and he said that it was not epidimidytis and that it is likely a "piping problem." I have an appointment with my urologist in about 20 days, any help as to what I can do to fix this and what it may be would be appreciated. I noticed that maybe starting 1-2 weeks ago I have not been getting any morning wood (previously I would get it between 1-4 times/week). Perhaps I have slightly more difficulty getting an erection, but I think it is because of my stress and overthinking of the situation. I can still get erections fairly easily but they are less common. Thank you for reading this, I wrote it in a hurry.
P.S. The lumps cause no pain