I came across a brown fungus growing in hardwood mulch that when raked with a leaf rake it puts off a brown poof of smoke into the air. A close landscaper friend said be aware of this....never inhale that smoke it will make you sick! Well being an impatient idiot I had to get the job done and didn't have a face mask. I inhaled some smoke When I asked him what happens he said you will feel miserable kinda like flu like symptoms for anywhere from 2 weeks to a couple months. Low and behold I feel like total crap since that day and its been 3 days. Is this true? Anyone heard of this? The fungus almost looks like dark brown dog vomit.