<s>[INST] Is it possible that a newly installed Pergo flooring is causing me breathing difficulties. It was installed along with a renovation that did have quite a bit of dust. The dust has been removed. We checked for mold and that came back negative. Typically when I am exposed do dust, my nose will run, I will get a sinus infection and my lungs will hurt. I am not having sinus issues. However, I have had to get and inhaler because my lungs are hurting and breathing is becoming more difficult and tight. I am extreemly sensitive to dust, smoke , cleaning agents, certain printers . . .I received a copy of the MSDS sheet on the Pergo flooring and it does talk about breathing difficulties, however, I am not sure if it is referencing the dust from cutting the wood during installation or the installed floor. [/INST] Hello, It does seem that your dust allergy has worsened after the new flooring was installed and if you were around at the time of installation, it would be unusual that such a high dust allergen load has upset your airways. If your peak flow is below 50% of your best reading, you need to be in hospital to sort out the lung. You do have multiple sensitivities and combination of things has led to the sudden worsening of symptoms. These include dust mites from old carpets, mold (not always seen), chemicals used to lay down the flooring etc. A Chest XRay is recommended to ensure there is no overt pneumonia or pleurisy. </s>