Why does my right testicle hurt?

Yesterday, my left testicle began hurting out of nowhere, but it wasnt that severe and it went away after a few hours. Today, my right testicle began to hurt but a LOT worse than my left. It hurt whenever I touched it or put any pressure on it or sat down in certain ways. At first, I believed it to be "blue balls", so I masturbated twice. Although a lot of the pain went away, it still hurts, a lingering pain, as if I had been kicked. It almost feels as if it had been pushed up towards my abdomen, but it doesnt hurt nearly as much when I touch it. Should I take a pain reliever and wait it out for a few days or should I go see a doctor? And if I wait it out, will I be at risk? Im not sexually active (as per the last 6 months), I didn't get hit there recently (within the last 72 hours), I don't have any bumps, there is no swelling, I am only 20, I did not get a vasectomy, there was nothing abnormal within my fluids (blood), and I do not feel nauseous or dizzy, only slightly physically drained, exhausted. Please help. Thank you.