I m 21. Pretty recently I ve been experiencing some lower back pain off and on. Now, I m starting to feel pain on my testicles. It s weird though because I feel the testicular pain when I m sitting in my car and also the lower back pain. I m a college student, when I sit in a classroom sometimes I feel lower back pain only. But other places like sitting in the dining room, a rolling chair while using the computer and while laying down on my bed I feel no pain.