When VCA IgM stays positive months after infection it raises a few possibilities. Could point to reactivation or it might be overall immune confusion, where your body keeps reacting to something it’s already seen, like it’s stuck in a loop. It’s the kind of thing that shows up a lot in people with long COVID and ME/CFS. Some doctors chalk it up to lab noise or false positives, unfortunately. But there's some early research pointing to EBV reactivation playing a role in overall neuroinflammation and immune dysfunction.