Right testicle larger

ok im 20 years old Male obviously,
well my issue is that my right testical is larger (meaning large big) a lot bigger than my left my left nut is the size of i don't know how to say this. i would say normal but size?? maybe i would say plump tomato or so,, my right testical is larger by a big amount its size is like a lemon or so but not as wide. now nothing hurts nothing pains nothing at all. i don't know whats wrong with me, i am not overweight im pretty much in good shape but, i don't know what wrong,
my testical are normal like if u squeeze (left) it will hurt like it should, but if u let it sit it won't do nothing my right testical is large i don't know what it is. i seen a doctor when i was younger and it checked out fine. but now i don't know again im 20 years old male
tell me what wrong??? anybody????