Lumps

Hello, I am 15 nearly 16, and I decided to check my testis for lumps. What I felt was a couple of lumps on the back of both testis, I'm pretty sure it's not cancer as it would be rare for lumps to appear on both testis and I feel like it may be the epididymis, but only when I search for lumps on testis they don't usually talk about the lumps from the epididymis so I do not know if they are normal. I just came here to check. Any help would be appreciated