There are many people who cannot detect mold in their home but have mold illness symptoms . Or they left the moldy environment, but they still have symptoms and/or have mycotoxins in their urine. How is this possible? Here are some possibilities: 1. You simply cannot find mold (at home or at work), as it is well-hidden but it's there. See this article for more info. 2. You have removed the mold, but the mycotoxins are still in your environment, adsorbed to surfaces and slowly being released. See this article for more info. 3. You have removed the mold, or left moldy environment, but lots of mycotoxins are still inside your body. Mycotoxins love fat (lipophilic), so they could be stored in fat and nervous (brain etc.) tissues. They can be slowly released from these tissues and affect your health. If they are trapped inside the nervous tissue, they may cause long-term nervous system problems. Relatively speaking, this situation is better than having living mold in your environment...