Hello, I am an 18 year old male and for the last day or so, I have felt discomfort/ache in my left testicle. I also tend to feel pain in my lower back, and when I touch a special place in my left abdomen it hurts a little. I also have started to get pains in my left leg. I have inspected my testicles continously and there is no lump or swelling, neither does it hurt when I touch them. Lower back pain has always been common for me, but not this feeling of discomfort in the testicle. What can this be?