About six weeks ago, I cut several pieces of HardiBacker cement board indoors with a jig saw and without any type of mask or respiratory protection.
A few days after, I developed a slight cough as well as clear phelgm, and my chest felt a little tight. I went to the doctor twice. He told me he thought it was Bronchitis and gave me antibiotics both times. He said my lungs sounded clear. He took no x-rays.
I still have the cough. I sleep well at night. I cough up a little in the mornings and then again in later afternoon, early evening. But now, I also seem to have a shortness of breath. Many times over the day, I sometimes can not complete sentences without stopping to take a breath.
Of course, I was paranoid of silica and silicosis, but what are the odds???