Late in the Fall the people I was with and I decided to start cleaning out the basement. All of us wanted get it done before the cold weather hit and have the space cleared out so that the people I was with and I could convert it into a guest room. All of us figured that it would be a nice project for the long winter. All of us spend most of the Wintertide indoors anyway because neither of us adore the snow and cold anyway. As the people I was with and I started the project the people I was with and I started to notice something strange. While downstairs if consistently felt adore I was light headed and within an hour or more than one I had to head upstairs to lay down. I never really made the lincoln until our Heating, Ventilation and A/C worker showed up for our annual tune up. She came up and told us that there was a concern with the HVAC duct. She said that there was a large buildup of mold in the area in the basement and that there were small holes in it too. When she was telling us all of this it dawned on me that this may be the cause for my feeling poorly. I asked him if this was really a occasion and she said that the build up could be causing my headaches and ill feelings because the mold spores would be emitted out into the space each time the Heating, Ventilation and A/C system came on. All of us arranged for the repairs to be done and have the entire HVAC duct system cleaned. After that I never experienced that feeling again when the people I was with and I were toiling in the basement. Now, the people I was with and I have a charming guest room that is safe for any of our guests to come and stay.