I've been experiencing pain near my left testicle for the past few days, or a week or so. The testicle itself doesn't hurt, and the pain is concentrated near the spot where the penile shaft connects to the crotch and where the testicle sac starts. It feels uncomfortable more than painful, like a pulled muscle, and happens when I sit for longer than 30 minutes on a chair a jolt of pain is felt while getting up. I haven't experienced it when i'm laying down in bed. What could it be and how severe is it?