I am a healthy young 13 year old. So about 5 weeks ago, my right testicle started to hurt on the top. I endured it for a week, but went to the doctor later when the right testicle started to swell a little. She had me take an ultrasound, and she said it was epididymitis and there was nothing to worry about. So I took the medicine(antibiotics), and the swelling came down and I was completely fine. But about a week later, I noticed that my right testicle was a little harder than my left one. When I took frequent warm showers, my testicle softened up a little. But later, it comes back again. There is no pain on the testicles, I have noticed something that is too tiny to be called a lump. It feels like a tiny pimple that is 2~3 mm.(Although this could be an appendix testis)Please help, I’m really anxious about this!