From what my son has described he has a swollen spot between his left
leg and groin area. I'm guessing lymph node. He also has a small swollen soft knot on the inside of his left anke, I felt that one. He said his urine is very dark. These are both sudden and both hurt. Any guesses? He hasn't gone skateboarding in a while, but he does skate board. He also (a few days ago) got a tatoo on the outside of his left calf.