It’s possible. A healing crisis describes a phenomenon that may occur while cleansing. Cleansing dislodges toxins in the body and may cause you to feel ill as they are metabolized and exit your body. Common indications include fatigue, headache, minor rash, brain fog, joint and muscle aches, irritability, difficulty sleeping, or mood swings. Some people experience several signs, while others experience few or none. Stay hydrated and get plenty of rest — the effects are temporary and will subside within a few days.