Breast Implant Illness Symptoms Introduction For years, women who experienced unexplained symptoms after receiving breast implants were told their concerns weren't connected to the implants. Fatigue, brain fog, joint pain, rashes, recurring infections, anxiety — all were attributed to other causes, or dismissed entirely. Today, there is a growing body of clinical understanding around what is now widely known as Breast Implant Illness (BII) — a constellation of systemic sympto