I spent Saturday splitting 2 cord of elm wood. Most of this wood still had bark hanging loosely on it which fell off when I split it but underneath the bark was a brown dusty dirty layer. Has any one had experience with this dust making them sick? By evening on Saturday I had the worst sore throat and chest cold I have had in years. I guess I will start wearing a mask when I work with this stuff. I wonder if some of the dust has some mold or something. Any other experiences with this?