breathing mold

Hi, I purchased a vintage dress online and after washing it the smell didn’t go away and realized it was mold. I placed the dress to dry next to a heater and after a few hours I started experiencing shortness of breath. I think I made a huge mistake and the spores have been spreading with the warm air coming from the heater! my house never had a mold problem, I am terrified that the dress might have caused mold to enter my house. What can I do now? thanks.