Okay so I am 13, and just recently I noticed "a new renovation" to my testicals. So its like sort of tubey but has bumps in it, and I can also move it around. (Only on the left testical) Im not sure if its attached or not, but Im worried it might be Testicular Cancer. I read some of the signs, and it said a pea-sized lump, but its not a pea sized lump, its something else. Any ideas what this may be?