I have a swollen lymph node under my right arm which appeared back in the spring, along with overall fatigue (doesn't improve no matter how much sleep), joint pain (in hips and butt), muscle aches in arms and legs; GP ran blood tests for mono and lymphoma but all negative, said to keep monitoring; no improvement however - given I am a baby-boomer and had two surgeries in 1975 and 1982 requiring blood, could this be linked to possibility of Hepatitis C?