Going back 5-6 years ago I accidentally exposed myself to asbestos. By walking over old roofing that was piled on the floor and broke a lot of it. At the time I did not know it was asbestos and didn't know the dangers of the stuff and am now worried about the situation. It was a one time exposure, I definitely breathed some in and got it on my clothes. Just wanted to know if I am at risk of getting anything in the future?