Is their something wrong with my testicles?

Like looking down if i feel my scrotum the left testicle tubes feel kind of tangled and i can barely feel the tube on my right testicle. My left one hurts from time to time, its not an unbearable pain but it feels like i sat on it or something. I am 15 by the way. I have had a physical recently but they didn't ask me to drop my pants so that didn't get examined. Is their something wrong with me??? I am kind of freaking out. All answers appreciated, thanks for them.