"Normal labs, but your body feels on fire?" Dr. Isabelle Amigues explains autoinflammatory syndrome, Adult-Onset Still’s Disease, the salmon-pink rash, and why high ferritin is a major clue.

Are your labs normal but your joints still ache? You might be dealing with seronegative rheumatoid arthritis. Learn how RA can hide from standard blood tests, what symptoms to look for, and how to get an accurate diagnosis.